Metals and Nonmetals MCQ Class 10 Quiz

Q: What are the properties of ionic compounds?

Ionic compounds are solids with high melting and boiling points. They are generally soluble in water and conduct electricity in the molten or dissolved state

Q: What is the reactivity series of metals?

The reactivity series is a list of metals arranged in order of their decreasing reactivity. It helps us predict the outcome of displacement reactions

Q: How are metals extracted from their ores?

The method for extracting a metal from its ore depends on its reactivity. Metals low in the reactivity series can be extracted by heating alone, while those in the middle require reduction with carbon or more reactive metals. Metals at the top of the series are extracted through electrolysis

Q: What is corrosion, and how can it be prevented?

Corrosion is the deterioration of a metal due to its reaction with the environment, such as rusting of iron. It can be prevented by techniques like painting, galvanization, and alloying

Q: What are alloys, and why are they useful?

Alloys are homogeneous mixtures of two or more metals, or a metal and a non-metal. They are prepared to enhance the properties of metals, such as increasing hardness or preventing corrosion

Question 1

Question 1: What primarily determines the classification of an element as a metal or non-metal?

A. Its color and textureB. Its source of originC. Its propertiesD. Its radioactive nature

Answer

C. Properties are the key factor in categorizing elements as metals or non-metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 2

Question 2: Which of the following is NOT a common use of metals in daily life?

A. Construction materialsB. Manufacturing clothC. Electrical wiringD. Making utensils

Answer

B. Metals are not typically used for manufacturing cloth.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 3

Question 3: How are the properties of an element related to its uses?

A. There is no relationship.B. Properties have an inverse relationship to uses.C. Properties determine the potential uses of an element.D. Uses define the properties of an element.

Answer

C. Properties determine the potential uses of an element.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 4

Question 4: What is the process of categorizing substances based on their physical properties called?

A. ClassificationB. SublimationC. EvaluationD. Synthesis

Answer

A. Classification is the process of categorizing substances based on their properties.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 5

Question 5: Which of the following is NOT a property typically used to classify an element as a metal or non-metal?

A. HardnessB. TasteC. Electrical conductivityD. Luster

Answer

B. Taste is not a primary property used for classifying metals and non-metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 6

Question 6: Which of the following is a characteristic property of metals?

A. They are typically brittle.B. They are poor conductors of heat.C. They usually have low melting points.D. They tend to be malleable.

Answer

D. Malleability, the ability to be shaped, is a characteristic of metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 7

Question 7: Why is the classification of elements as metals or non-metals important?

A. It helps in predicting their behavior and potential uses.B. It is a mere formality with no practical implications.C. It solely serves the purpose of academic organization.D. It is only relevant in highly specialized scientific fields.

Answer

A. Classifying elements aids in understanding their behavior and potential uses.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 8

Question 8: What is the key difference between metals and non-metals in terms of electron behavior?

A. Metals tend to gain electrons, while non-metals tend to lose them.B. Metals tend to lose electrons, while non-metals tend to gain them.C. Both metals and non-metals tend to gain electrons.D. Both metals and non-metals tend to lose electrons.

Answer

B. Metals typically lose electrons, becoming positively charged ions (cations), while non-metals gain electrons to form negatively charged ions (anions).(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 9

Question 9: Which of the following properties is NOT typically associated with non-metals?

A. They are good conductors of electricity.B. They may exist in different states of matter at room temperature.C. They are generally less malleable than metals.D. They tend to form acidic oxides.

Answer

A. Non-metals are generally poor conductors of electricity, with the exception of allotropes like graphite.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 10

Question 10: What is the significance of completely filled valence shells in atoms?

A. It indicates high chemical reactivity.B. It suggests the ability to form multiple bonds.C. It signifies a lower atomic mass.D. It often leads to low chemical activity.

Answer

D. Completely filled valence shells, like those seen in noble gases, often result in low chemical activity.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 11

Question 11: Which property of metals makes them useful for creating mirrors and decorative items?

A. MalleabilityB. DuctilityC. LusterD. Hardness

Answer

C. Luster, as it refers to the shiny appearance of metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 12

Question 12: Which of the following metals is the most malleable?

A. IronB. GoldC. AluminumD. Copper

Answer

B. Gold is the most malleable metal.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 13

Question 13: What property of metals allows them to be drawn into thin wires for electrical applications?

A. MalleabilityB. DuctilityC. LusterD. Hardness

Answer

B. Ductility, as it refers to the ability of metals to be drawn into wires.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 14

Question 14: Which of the following metals is the best conductor of heat?

A. LeadB. MercuryC. SilverD. Iron

Answer

C. Silver is the best conductor of heat.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 15

Question 15: Which of the following is a property of sonorous materials?

A. They are soft and flexible.B. They produce a sound when struck.C. They are poor conductors of electricity.D. They have low melting points.

Answer

B. Sonorous materials produce a sound when struck.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 16

Question 16: Which of the following is NOT a typical property of non-metals?

A. They are brittle.B. They are poor conductors of heat.C. They are usually malleable.D. They have low melting points.

Answer

C. Non-metals are typically not malleable.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 17

Question 17: Which non-metal element exists in multiple forms, each with distinct properties?

A. SulphurB. IodineC. CarbonD. Bromine

Answer

C. Carbon exists as allotropes like diamond and graphite, each with different properties.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 18

Question 18: Which allotrope of carbon is the hardest known natural substance?

A. GraphiteB. DiamondC. CharcoalD. Soot

Answer

B. Diamond is the hardest known natural substance.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 19

Question 19: Which of the following is an exception to the general rule that metals are solid at room temperature?

A. SodiumB. MagnesiumC. MercuryD. Aluminum

Answer

C. Mercury is a liquid metal at room temperature.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 20

Question 20: Which of the following is a non-metal that exhibits luster?

A. CarbonB. SulphurC. IodineD. Oxygen

Answer

C. Iodine is a non-metal that exhibits luster.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 21

Question 21: Why are metals generally good conductors of electricity?

A. Because they have free electrons that can move easily.B. Because they are strong and durable.C. Because they have high melting points.D. Because they are shiny.

Answer

A. The free electrons in metals enable the flow of electric current.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 22

Question 22: Which of these non-metals is a good conductor of electricity?

A. SulphurB. GraphiteC. DiamondD. Phosphorus

Answer

B. Graphite, an allotrope of carbon, has a unique structure that allows for electrical conductivity.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 23

Question 23: Why is copper preferred for making electrical wires?

A. It is cheap and easily available.B. It is a good conductor of electricity.C. It is strong and durable.D. All of the above.

Answer

D. All the mentioned properties contribute to copper’s suitability for electrical wiring.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 24

Question 24: What makes metals suitable for use in cooking utensils?

A. Their ability to conduct heat.B. Their malleability.C. Their luster.D. Their ductility.

Answer

A. Metals conduct heat efficiently, allowing for even cooking.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 25

Question 25: Why are metals like gold and silver used in jewelry?

A. They are lustrous and attractive.B. They are malleable and can be shaped easily.C. They are resistant to corrosion.D. All of the above.

Answer

D. All the mentioned properties make gold and silver suitable for jewelry.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 26

Question 26: What is the term for the ability of a metal to be hammered into thin sheets?

A. DuctilityB. MalleabilityC. LusterD. Conductivity

Answer

B. Malleability refers to the ability to be hammered into sheets.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 27

Question 27: Which of the following is a common property of both metals and non-metals?

A. They are all good conductors of electricity.B. They can all be hammered into thin sheets.C. They can exist in different states of matter.D. They all have high melting points.

Answer

C. Both metals and non-metals can exist as solids, liquids, or gases.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 28

Question 28: Why are non-metals generally poor conductors of heat?

A. They lack free electrons to transfer heat energy.B. They are brittle and break easily.C. They have low melting points.D. They are not shiny.

Answer

A. The absence of free electrons hinders efficient heat transfer in non-metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 29

Question 29: Which property of diamond makes it useful for cutting tools?

A. Its lusterB. Its electrical conductivityC. Its hardnessD. Its malleability

Answer

C. Diamond’s exceptional hardness allows it to cut other materials.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 30

Question 30: Which of the following is NOT a reason why mercury is used in thermometers?

A. It is a liquid at room temperature.B. It is a good conductor of heat.C. It has a high melting point.D. It expands uniformly with temperature changes.

Answer

C. Mercury actually has a low melting point, which is essential for its use in thermometers.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 31

Question 31: What happens when magnesium reacts with oxygen?

A. It forms magnesium oxide.B. It releases hydrogen gas.C. It turns into a liquid.D. No reaction occurs.

Answer

A. Magnesium burns in oxygen to form magnesium oxide.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 32

Question 32: Which of the following metals reacts vigorously with cold water?

A. IronB. ZincC. SodiumD. Copper

Answer

C. Sodium reacts violently with cold water.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 33

Question 33: What gas is usually produced when a metal reacts with an acid?

A. OxygenB. HydrogenC. Carbon dioxideD. Nitrogen

Answer

B. Many metals react with acids to release hydrogen gas.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 34

Question 34: What happens when a more reactive metal is placed in a solution of a less reactive metal salt?

A. No reaction occurs.B. The more reactive metal displaces the less reactive metal from its salt solution.C. The less reactive metal displaces the more reactive metal from its salt solution.D. Both metals dissolve in the solution.

Answer

B. This is the basis of displacement reactions in the reactivity series.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 35

Question 35: Which of the following metals is at the top of the reactivity series?

A. GoldB. SilverC. PotassiumD. Copper

Answer

C. Potassium is one of the most reactive metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 36

Question 36: Which of the following metals does NOT react with oxygen even at high temperatures?

A. GoldB. IronC. MagnesiumD. Sodium

Answer

A. Gold is a very unreactive metal.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 37

Question 37: What is formed when copper reacts with oxygen in the air?

A. Copper oxideB. Copper hydroxideC. Copper carbonateD. Copper chloride

Answer

A. Copper reacts with oxygen to form copper oxide, which gives it a greenish coating.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 38

Question 38: Why does calcium float when it reacts with water?

A. It forms calcium oxide, which is lighter than water.B. It releases hydrogen gas, which sticks to the surface of the metal.C. It dissolves in water.D. It becomes less dense than water.

Answer

B. The bubbles of hydrogen gas produced make the calcium float.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 39

Question 39: Which of the following metals reacts with dilute hydrochloric acid to form a green solution?

A. IronB. CopperC. ZincD. Magnesium

Answer

A. Iron reacts with dilute hydrochloric acid to form iron(II) chloride, which is green.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 40

Question 40: What is the purpose of the reactivity series of metals?

A. To compare the densities of metals.B. To predict the outcomes of chemical reactions.C. To classify metals based on their color.D. To determine the melting points of metals.

Answer

B. The reactivity series helps predict how metals will react with other substances.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 41

Question 41: Which of the following metals is most likely to tarnish when exposed to air?

A. GoldB. PlatinumC. SilverD. Mercury

Answer

C. Silver reacts with substances in the air to form tarnish.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 42

Question 42: Why is gold used in making jewelry and ornaments?

A. It is highly reactive.B. It is very malleable and ductile.C. It tarnishes easily.D. It is a poor conductor of electricity.

Answer

B. Gold’s malleability and ductility allow it to be shaped into intricate designs, and its resistance to corrosion ensures lasting beauty.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 43

Question 43: Which of the following reactions is an example of a displacement reaction?

A. Iron reacting with oxygen to form rust.B. Magnesium reacting with hydrochloric acid to produce hydrogen gas.C. Zinc reacting with copper sulfate solution to form zinc sulfate and copper.D. Sodium reacting with water to produce sodium hydroxide and hydrogen gas.

Answer

C. Zinc displaces copper from the solution due to its higher reactivity.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 44

Question 44: Why does a copper vessel develop a green coating when exposed to moist air for a long time?

A. It reacts with oxygen to form copper oxide.B. It reacts with carbon dioxide to form copper carbonate.C. It reacts with water to form copper hydroxide.D. It reacts with pollutants in the air to form various compounds.

Answer

A. The green coating is a result of copper oxide formation.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 45

Question 45: Which of the following metals is used in galvanization to protect iron from rusting?

A. CopperB. SilverC. GoldD. Zinc

Answer

D. Zinc is coated on iron because it is more reactive and corrodes preferentially.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 46

Question 46: What happens when sulphur reacts with oxygen?

A. It forms sulphur dioxide.B. It forms sulphur trioxide.C. It forms sulphuric acid.D. It does not react with oxygen.

Answer

A. Sulphur burns in oxygen to form sulphur dioxide.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 47

Question 47: Which of the following non-metals does NOT react with oxygen?

A. SulphurB. CarbonC. PhosphorusD. Helium

Answer

D. Helium is a noble gas and is very unreactive.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 48

Question 48: What type of oxides do non-metals generally form?

A. Basic oxidesB. Acidic oxidesC. Neutral oxidesD. Amphoteric oxides

Answer

B. Non-metal oxides are generally acidic in nature.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 49

Question 49: Which of the following non-metals reacts with hydrogen to form ammonia?

A. ChlorineB. SulphurC. NitrogenD. Oxygen

Answer

C. Nitrogen and hydrogen react to form ammonia in the Haber process.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 50

Question 50: What happens when sulphur dioxide dissolves in water?

A. It forms sulphuric acid.B. It forms sulphurous acid.C. It forms hydrogen sulphide.D. It does not dissolve in water.

Answer

B. Sulphur dioxide dissolves in water to form sulphurous acid.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 51

Question 51: What is the chemical formula of the product formed when carbon burns in oxygen?

A. COB. CO₂C. C₂O₃D. C₃O₂

Answer

B. Carbon dioxide (CO₂) is formed when carbon burns in oxygen.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 52

Question 52: Which of the following non-metals is used in water purification?

A. ChlorineB. SulphurC. NitrogenD. Phosphorus

Answer

A. Chlorine is used as a disinfectant in water treatment.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 53

Question 53: Why is hydrogen considered a non-metal even though it has one electron like alkali metals?

A. It exists as a gas at room temperature.B. It forms covalent bonds.C. It has a low boiling point.D. All of the above.

Answer

D. All the mentioned properties contribute to hydrogen’s classification as a non-metal.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 54

Question 54: What is the nature of the solution formed when phosphorus pentoxide reacts with water?

A. AcidicB. BasicC. NeutralD. Amphoteric

Answer

A. Phosphorus pentoxide reacts with water to form phosphoric acid.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 55

Question 55: Which of the following non-metals is essential for life and is a key component of proteins?

A. CarbonB. SulphurC. NitrogenD. Oxygen

Answer

C. Nitrogen is a crucial component of amino acids, which build proteins.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 56

Question 56: Which non-metal is used in fertilizers and explosives?

A. ChlorineB. NitrogenC. PhosphorusD. Sulphur

Answer

C. Phosphorus is a key component in many fertilizers and explosives.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 57

Question 57: What is the common name for the compound formed when sulphur reacts with hydrogen?

A. Sulphur dioxideB. Hydrogen sulphideC. Sulphuric acidD. Sulphurous acid

Answer

B. Hydrogen sulphide (H₂S) is a gas with a characteristic rotten egg smell.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 58

Question 58: Which of these non-metals is essential for respiration and combustion?

A. NitrogenB. OxygenC. ChlorineD. Hydrogen

Answer

B. Oxygen is necessary for both respiration and combustion processes.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 59

Question 59: What is the chemical formula for sulphuric acid?

A. H₂SO₃B. H₂SO₄C. H₂SD. SO₂

Answer

B. H₂SO₄ is the chemical formula for sulphuric acid.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 60

Question 60: Which non-metal is a liquid at room temperature and is used as an antiseptic?

A. BromineB. ChlorineC. IodineD. Sulphur

Answer

A. Bromine is a reddish-brown liquid at room temperature with antiseptic properties.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 61

Question 61: What type of bond is formed when a metal reacts with a non-metal?

A. Covalent bondB. Ionic bondC. Metallic bondD. Hydrogen bond

Answer

B. Ionic bonds are formed due to the electrostatic attraction between oppositely charged ions.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 62

Question 62: What happens to the electrons in the formation of an ionic compound?

A. They are shared between the atoms.B. They are transferred from the metal to the non-metal.C. They are transferred from the non-metal to the metal.D. They are lost from both the metal and the non-metal.

Answer

B. Metals lose electrons to become cations, and non-metals gain those electrons to become anions.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 63

Question 63: What is the general physical state of ionic compounds at room temperature?

A. GaseousB. LiquidC. SolidD. Plasma

Answer

C. Ionic compounds are typically solid at room temperature due to the strong electrostatic forces of attraction.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Question 64

Question 64: Why do ionic compounds generally have high melting and boiling points?

A. They have weak intermolecular forces.B. They have strong electrostatic forces of attraction between ions.C. They have low densities.D. They are good conductors of electricity in the solid state.

Answer

B. Strong ionic bonds require a lot of energy to break, resulting in high melting and boiling points.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

A. Ionic compounds form a crystal lattice structure.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. Ionic compounds conduct electricity when molten or dissolved in water due to the presence of free-moving ions.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. The polar nature of water molecules allows them to solvate and stabilize ions.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

A. NaCl represents the one-to-one ratio of sodium and chloride ions in the compound.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

C. Ionic compounds do not conduct electricity in the solid state because the ions are not free to move.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

C. The ionic compound breaks down into its constituent ions, which are then surrounded by water molecules.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

C. Many fertilizers contain ionic compounds like nitrates and phosphates.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. When stress is applied, the layers of ions can shift, leading to repulsion between like charges and causing the crystal to break.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Table salt is sodium chloride (NaCl), an ionic compound.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. A high enthalpy of fusion reflects the large amount of energy needed to overcome the strong ionic bonds and transition from solid to liquid.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

A. Magnesium chloride is formed by the ionic bond between magnesium and chlorine ions.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Minerals are naturally occurring substances containing metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

A. Ores are minerals that are economically viable for metal extraction.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. Enrichment involves processes to increase the concentration of the desired metal in the ore.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

A. Unreactive metals like gold and platinum are often found in their native state.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. Metals like iron and zinc are extracted by this method.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

C. Electrolysis is used for highly reactive metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

A. Refining processes increase the purity of the extracted metal.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Haematite is a common iron ore.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Calcination is used to decompose carbonates and hydrated ores.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Flux combines with gangue to form slag, which can be easily separated.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Electrolytic refining is used to obtain high-purity copper.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Cryolite lowers the melting point of alumina, making the process more energy-efficient.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. Smelting involves heating the ore with carbon to reduce the metal oxide.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. Carbon’s availability and its ability to remove oxygen from metal oxides make it a suitable reducing agent.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. Neutralization is not a typical step in metal extraction.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Corrosion is a broader term that encompasses various forms of metal degradation.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

A. Rust is a hydrated iron oxide formed due to corrosion.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. While hardness is a property of metals, it doesn’t directly influence the rate of corrosion.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. All these methods provide a barrier between the metal and the environment.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

C. The zinc coating on galvanized iron protects it from rusting.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

D. Alloys can be composed of metals combined with other metals or non-metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

C. Alloys are often designed to be less reactive than their constituent metals.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

A. Bronze is primarily an alloy of copper and tin.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Duralumin is lightweight and strong, making it suitable for aircraft construction.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Accepted Answer

B. Amalgams are commonly used in dentistry.(Metals and Nonmetals MCQ Class 10 Quiz by Top100MCQ.com)

Table of Contents

I. Introduction and Classification

II. Physical Properties

III. Chemical Properties of Metals

IV. Chemical Properties of Non-metals

V. Ionic Compounds

VI. Occurrence and Extraction of Metals

VII. Corrosion

VIII. Alloys

What are the properties of ionic compounds?

What is the reactivity series of metals?

How are metals extracted from their ores?

What is corrosion, and how can it be prevented?

What are alloys, and why are they useful?

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