10TH CBSE SCIENCE metals and minerals 50 MCQS QUIZ

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Metals and Minerals

5 Theory-Based MCQ Tests • 10 Questions Each

Instructions

• 5 tests × 10 questions = 50 MCQs.
• Questions focus only on theory, concepts and properties from the uploaded material.
• Submit a test to see your score.
• Correct answers are hidden until the password is entered.

Test 1 — Properties of Metals & Non-Metals

10 questions • 1 mark each

1. Which property allows metals to be beaten into thin sheets?

A. DuctilityB. MalleabilityC. SonorousnessD. Conductivity

2. Which property allows a metal to be drawn into thin wires?

A. MalleabilityB. DuctilityC. LustreD. Sonorousness

3. Which property of metals is useful in making bells and musical instruments?

A. DuctilityB. MalleabilityC. SonorousnessD. Density

4. Which of the following is a good conductor of electricity among the listed non-metals?

A. SulphurB. PhosphorusC. GraphiteD. Bromine

5. Which non-metal is lustrous?

A. SulphurB. OxygenC. NitrogenD. Iodine

6. Which metal is liquid at room temperature?

A. SodiumB. SilverC. ChromiumD. Mercury

7. Which metal is described as soft enough to be cut with a knife and highly reactive?

A. MagnesiumB. SodiumC. CalciumD. Iron

8. Why is aluminium resistant to corrosion?

A. It has very high densityB. It forms a thin protective oxide layerC. It is a non-metalD. It cannot react with oxygen

9. What is the main reason copper can be used for cooking utensils?

A. High reactivityB. Malleability, thermal conductivity and high melting pointC. Very low melting pointD. Poor heat conduction

10. The lustre of a metal is associated with the presence of:

A. Free electronsB. Water moleculesC. Carbon atomsD. Oxide ions

Correct answers are locked.

Test 2 — Reactivity & Chemical Behaviour

10 questions • 1 mark each

1. The activity series of metals arranges metals according to their:

A. DensityB. ReactivityC. DuctilityD. Melting point

2. What happens when a more reactive metal is placed in the salt solution of a less reactive metal?

A. No reaction is possibleB. The more reactive metal can displace the less reactive metalC. Both metals become non-reactiveD. Only water is formed

3. Why can zinc displace copper from copper sulphate solution?

A. Zinc is less reactive than copperB. Zinc is more reactive than copperC. Copper is above zinc in the seriesD. Zinc is a non-metal

4. Which metal does not react with dilute hydrochloric acid according to the source?

A. AluminiumB. CopperC. ZincD. Iron

5. Why is sodium stored in kerosene oil?

A. It is insoluble in keroseneB. It reacts vigorously with air and can catch fireC. It is a liquid metalD. It becomes less dense

6. Which metal is always found in an amalgam?

A. IronB. AluminiumC. MercuryD. Magnesium

7. Which type of oxide can react with both acids and bases?

A. Neutral oxideB. Amphoteric oxideC. Only acidic oxideD. Only basic oxide

8. Which pair forms amphoteric oxides?

A. Sodium and calciumB. Aluminium and zincC. Copper and sodiumD. Iron and potassium

9. What happens to calcium when it reacts with water?

A. It never reactsB. It reacts and produces hydrogen gasC. It produces chlorineD. It produces oxygen only

10. Why can calcium start floating during its reaction with water?

A. It becomes a gasB. Hydrogen bubbles stick to its surfaceC. It melts immediatelyD. It becomes less reactive

Correct answers are locked.

Test 3 — Ores, Minerals & Extraction

10 questions • 1 mark each

1. What is metallurgy?

A. Only purification of waterB. Extraction of metals from ores followed by refiningC. Formation of alloys onlyD. Corrosion prevention

2. What are the earthy impurities associated with minerals in metallurgy called?

A. FluxB. SlagC. GangueD. Alloy

3. Which ore is associated with mercury?

A. Rock saltB. CinnabarC. CalamineD. Haematite

4. Calamine is an ore of which metal?

A. CopperB. MercuryC. AluminiumD. Zinc

5. Pyrolusite is an ore of:

A. ManganeseB. IronC. CopperD. Aluminium

6. What is roasting?

A. Heating sulphide ores strongly in the presence of airB. Heating carbonate ores without airC. Cooling an oreD. Electroplating a metal

7. What is calcination?

A. Heating a carbonate ore strongly in the absence of airB. Heating sulphide ore in excess airC. Electrolytic refiningD. Mixing an ore with mercury

8. Which process converts zinc blende into zinc oxide?

A. CalcinationB. RoastingC. ElectrolysisD. Galvanization

9. Which process converts calamine into zinc oxide?

A. RoastingB. CalcinationC. Smelting with mercuryD. Zone refining

10. Why are highly reactive metals such as magnesium and aluminium extracted by electrolysis?

A. Their oxides are very stable and cannot be easily reduced by carbonB. They are less reactive than copperC. They occur only as gasesD. They have very low melting points

Correct answers are locked.

Test 4 — Alloys, Corrosion & Refining

10 questions • 1 mark each

1. Bronze is an alloy of:

A. Copper and zincB. Copper and tinC. Aluminium and tinD. Iron and carbon

2. Steel contains iron along with which non-metal?

A. SulphurB. CarbonC. OxygenD. Nitrogen

3. Stainless steel is mainly iron mixed with:

A. Nickel and chromiumB. Copper and chromiumC. Nickel and copperD. Copper and gold

4. What is an amalgam?

A. An alloy containing mercuryB. An oxide of aluminiumC. A sulphide oreD. A protective coating

5. What is galvanization?

A. Coating iron or steel with zincB. Heating an ore in airC. Purifying copper by distillationD. Mixing copper with tin

6. What is the green coating formed on copper objects exposed to air?

A. Copper sulphateB. Basic copper carbonateC. Copper nitrateD. Pure copper oxide only

7. Which method can be used to prevent rusting of an iron frying pan according to the source?

A. Applying a zinc coatingB. Adding waterC. Removing all oxygen permanentlyD. Heating it continuously

8. In electrolytic refining of copper, the impure metal is used as the:

A. CathodeB. AnodeC. ElectrolyteD. Insulator

9. In electrolytic refining, pure metal is deposited on the:

A. AnodeB. CathodeC. GangueD. Flux

10. What is zone refining used for?

A. Purification of a metalB. Concentration of an oreC. Formation of an alloyD. Prevention of rust

Correct answers are locked.

Test 5 — Ionic Compounds, Bonding & Important Concepts

10 questions • 1 mark each

1. Ionic compounds are formed mainly by:

A. Sharing of electrons between identical atomsB. Transfer of electrons between atomsC. Sharing of protonsD. Loss of neutrons

2. Why do ionic compounds conduct electricity in molten state?

A. They contain mobile charged particlesB. They contain only neutral moleculesC. They have no ionsD. Their atoms stop moving

3. Why do ionic compounds generally not conduct electricity in solid state?

A. Their ions are not free to moveB. They have no electrons at allC. They are gasesD. They contain only metals

4. Non-metals form covalent chlorides because they:

A. Give electrons to chlorineB. Share electrons with chlorineC. Cannot form bondsD. Always form ionic bonds

5. Which compound is non-ionic among the listed compounds?

A. Lithium chlorideB. Ammonium chlorideC. Calcium chlorideD. Carbon tetrachloride

6. What is the relationship between the number of electrons lost or gained and electrovalency?

A. It determines the valency in ionic bond formationB. It determines density onlyC. It determines colour onlyD. It determines melting point only

7. An element with electronic configuration 2,8,7 is most likely to be:

A. A metalB. A non-metalC. A noble metalD. An alkaline earth metal

8. An element with electronic configuration 2,8,2 tends to form an ion by:

A. Gaining two electronsB. Losing two electronsC. Sharing seven electronsD. Gaining eight electrons

9. Which gas is required for combustion?

A. NitrogenB. ChlorineC. OxygenD. Sulphur

10. Why is hydrogen not widely used as a reducing agent according to the source?

A. Many metals form hydrides at lower temperaturesB. It cannot react with metalsC. It is always an oxidising agentD. It is a solid at room temperature

Correct answers are locked.