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Science

Metals and Non-metals Quiz

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Question 1

The sheet property

Difficulty: easySource: NCERT Activity 3.3 alignedTopic: physical-properties

Which property allows aluminium to be rolled into foil?

1ductility2sonority3malleability4brittleness

Question 2

Physical-property exception

Difficulty: easySource: NCERT Section 3.1.2 exceptions alignedTopic: thermal-conductivity-and-conductivity

Which statement is correct?

1Iodine is a lustrous non-metal2Mercury is a gaseous metal3Graphite is a metal4Bromine is a liquid metal

Question 3

Activity 3.5

Difficulty: easySource: NCERT Activity 3.5 and official 2025-26 SQP Q25 alignedTopic: thermal-conductivity-and-conductivity

Why does the wax-held pin fall when the metal wire is heated near its clamped end?

1The wire burns and releases gas2Heat conducts along the wire and melts the wax3The pin becomes magnetic4The wax conducts electricity

Question 4

Amphoteric evidence

Difficulty: mediumSource: NCERT Section 3.2.1 and 2023-2025 board-demand alignedTopic: oxides-and-chemical-properties

Which pair of reactions proves that aluminium oxide is amphoteric?

1It reacts with oxygen and water2It reacts with both HCl and NaOH3It reacts with copper and iron4It dissolves only in water

Question 5

Copper in air

Difficulty: easySource: NCERT Section 3.2.1 and 2023 board case alignedTopic: oxides-and-chemical-properties

What happens when copper is heated in air?

1It burns with a white flame and forms Cu2O2It forms a black CuO coating3It forms green FeSO44It does not change at all

Question 6

Metal with water

Difficulty: mediumSource: NCERT Section 3.2.2 alignedTopic: reactivity-series-and-displacement

Which metal does not react with cold water but reacts with hot water?

1sodium2calcium3magnesium4copper

Question 7

Calcium floats

Difficulty: mediumSource: NCERT Section 3.2.2 and 2024 board-demand alignedTopic: reactivity-series-and-displacement

Calcium starts floating during its reaction with water because:

1calcium is less dense than every liquid2oxygen bubbles stick to it3hydrogen bubbles stick to its surface4calcium hydroxide is a gas

Question 8

Nitric acid exception

Difficulty: mediumSource: NCERT Section 3.2.3 and 2024-2026 board-demand alignedTopic: reactivity-series-and-displacement

Why is hydrogen generally not evolved when a metal reacts with nitric acid?

1Nitric acid contains no hydrogen2Nitric acid oxidises the produced hydrogen to water3Every metal lies below hydrogen4Nitric acid is a weak base

Question 9

Iron and copper sulphate

Difficulty: mediumSource: NCERT Activity 3.12 alignedTopic: reactivity-series-and-displacement

Which complete observation is correct when an iron nail is placed in copper sulphate solution?

1No reaction2Blue solution becomes pale green and copper coats the nail3Pale-green solution becomes blue and iron coats the nail4Hydrogen gas alone forms

Question 10

Electron transfer

Difficulty: mediumSource: NCERT Figure 3.6 alignedTopic: ionic-compounds

Why is the formula of magnesium chloride MgCl2?

1Mg gains one electron and Cl loses two2Mg loses two electrons and each of two Cl atoms gains one3Mg and Cl share four electrons equally4Chlorine forms a 2+ ion

Question 11

Solid versus molten

Difficulty: mediumSource: NCERT Section 3.3.1 alignedTopic: ionic-compounds

Solid sodium chloride does not conduct electricity, but molten sodium chloride does because:

1solid sodium chloride contains no ions2molten sodium chloride contains free electrons from metal3ions are fixed in the solid and mobile in the melt4melting converts sodium chloride into copper

Question 12

High melting point

Difficulty: easySource: NCERT Section 3.3.1 and 2026 board Q25 alignedTopic: ionic-compounds

Ionic compounds have high melting points mainly because:

1they contain weak molecular attraction2strong electrostatic attraction holds oppositely charged ions3all ionic compounds contain water4their atoms are uncharged and far apart

Question 13

Mineral and ore

Difficulty: mediumSource: NCERT Section 3.4 alignedTopic: corrosion-and-prevention

Which statement is correct?

1Every mineral is an ore2Every ore is a mineral, but not every mineral is an ore3Gangue is the pure metal4Ore contains no impurity

Question 14

Roasting and calcination

Difficulty: mediumSource: NCERT Section 3.4.4 and 2023/2026 board-demand alignedTopic: corrosion-and-prevention

Which pairing is correct?

1sulphide ore—calcination in excess air2carbonate ore—roasting in excess air3sulphide ore—roasting in excess air4carbonate ore—electrolysis only

Question 15

High-activity extraction

Difficulty: hardSource: NCERT Section 3.4.5 and official 2025-26 SQP Q26 alignedTopic: corrosion-and-prevention

Why is sodium extracted by electrolytic reduction rather than carbon reduction?

1Sodium is below carbon in reactivity2Sodium has greater affinity for oxygen than carbon3Sodium chloride is a covalent liquid4Carbon is an ionic metal

Question 16

Thermit reaction

Difficulty: easySource: NCERT Figure 3.11 and 2023-2026 board-demand alignedTopic: corrosion-and-prevention

What is the main useful result of Fe2O3 + 2Al -> 2Fe + Al2O3 + heat?

1cold iron powder2molten iron that can join railway tracks3hydrogen for balloons4sodium metal

Question 17

Copper refining

Difficulty: mediumSource: NCERT Figure 3.12 and 2026 board Q28 alignedTopic: corrosion-and-prevention

Which setup is correct in electrolytic refining of copper?

1pure copper anode; impure copper cathode2impure copper anode; pure copper cathode3carbon anode; sodium cathode4both electrodes are iron

Question 18

Rusting control

Difficulty: easySource: NCERT Activity 3.14 and 2025 board Q30 alignedTopic: corrosion-and-prevention

In Activity 3.14, which tube rusts?

1nails with both ordinary water and air2nails in boiled water under oil3nails in dry air over anhydrous calcium chloride4all tubes equally

Question 19

Gold purity

Difficulty: mediumSource: NCERT Section 3.5.1 Do You Know alignedTopic: corrosion-and-prevention

What does 22-carat gold mean in the NCERT description?

122 parts gold and 2 parts copper or silver222 parts copper and 2 parts gold3completely pure gold4gold mixed only with mercury

Question 20

Copper hot-water tank

Difficulty: hardSource: NCERT Exercise 16 alignedTopic: ncert-exercises-and-revision

Why is copper preferred over steel for hot-water tanks?

1Copper reacts violently with steam2Copper is less reactive and does not react with water or steam3Steel is a non-metal4Copper is always cheaper than steel

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Question 1

The sheet property

Difficulty: easySource: NCERT Activity 3.3 alignedTopic: physical-properties

Which property allows aluminium to be rolled into foil?

1ductility2sonority3malleability4brittleness

Question 2

Physical-property exception

Difficulty: easySource: NCERT Section 3.1.2 exceptions alignedTopic: thermal-conductivity-and-conductivity

Which statement is correct?

1Iodine is a lustrous non-metal2Mercury is a gaseous metal3Graphite is a metal4Bromine is a liquid metal

Question 3

Activity 3.5

Difficulty: easySource: NCERT Activity 3.5 and official 2025-26 SQP Q25 alignedTopic: thermal-conductivity-and-conductivity

Why does the wax-held pin fall when the metal wire is heated near its clamped end?

1The wire burns and releases gas2Heat conducts along the wire and melts the wax3The pin becomes magnetic4The wax conducts electricity

Question 4

Amphoteric evidence

Difficulty: mediumSource: NCERT Section 3.2.1 and 2023-2025 board-demand alignedTopic: oxides-and-chemical-properties

Which pair of reactions proves that aluminium oxide is amphoteric?

1It reacts with oxygen and water2It reacts with both HCl and NaOH3It reacts with copper and iron4It dissolves only in water

Question 5

Copper in air

Difficulty: easySource: NCERT Section 3.2.1 and 2023 board case alignedTopic: oxides-and-chemical-properties

What happens when copper is heated in air?

1It burns with a white flame and forms Cu2O2It forms a black CuO coating3It forms green FeSO44It does not change at all

Question 6

Metal with water

Difficulty: mediumSource: NCERT Section 3.2.2 alignedTopic: reactivity-series-and-displacement

Which metal does not react with cold water but reacts with hot water?

1sodium2calcium3magnesium4copper

Question 7

Calcium floats

Difficulty: mediumSource: NCERT Section 3.2.2 and 2024 board-demand alignedTopic: reactivity-series-and-displacement

Calcium starts floating during its reaction with water because:

1calcium is less dense than every liquid2oxygen bubbles stick to it3hydrogen bubbles stick to its surface4calcium hydroxide is a gas

Question 8

Nitric acid exception

Difficulty: mediumSource: NCERT Section 3.2.3 and 2024-2026 board-demand alignedTopic: reactivity-series-and-displacement

Why is hydrogen generally not evolved when a metal reacts with nitric acid?

1Nitric acid contains no hydrogen2Nitric acid oxidises the produced hydrogen to water3Every metal lies below hydrogen4Nitric acid is a weak base

Question 9

Iron and copper sulphate

Difficulty: mediumSource: NCERT Activity 3.12 alignedTopic: reactivity-series-and-displacement

Which complete observation is correct when an iron nail is placed in copper sulphate solution?

1No reaction2Blue solution becomes pale green and copper coats the nail3Pale-green solution becomes blue and iron coats the nail4Hydrogen gas alone forms

Question 10

Electron transfer

Difficulty: mediumSource: NCERT Figure 3.6 alignedTopic: ionic-compounds

Why is the formula of magnesium chloride MgCl2?

1Mg gains one electron and Cl loses two2Mg loses two electrons and each of two Cl atoms gains one3Mg and Cl share four electrons equally4Chlorine forms a 2+ ion

Question 11

Solid versus molten

Difficulty: mediumSource: NCERT Section 3.3.1 alignedTopic: ionic-compounds

Solid sodium chloride does not conduct electricity, but molten sodium chloride does because:

1solid sodium chloride contains no ions2molten sodium chloride contains free electrons from metal3ions are fixed in the solid and mobile in the melt4melting converts sodium chloride into copper

Question 12

High melting point

Difficulty: easySource: NCERT Section 3.3.1 and 2026 board Q25 alignedTopic: ionic-compounds

Ionic compounds have high melting points mainly because:

1they contain weak molecular attraction2strong electrostatic attraction holds oppositely charged ions3all ionic compounds contain water4their atoms are uncharged and far apart

Question 13

Mineral and ore

Difficulty: mediumSource: NCERT Section 3.4 alignedTopic: corrosion-and-prevention

Which statement is correct?

1Every mineral is an ore2Every ore is a mineral, but not every mineral is an ore3Gangue is the pure metal4Ore contains no impurity

Question 14

Roasting and calcination

Difficulty: mediumSource: NCERT Section 3.4.4 and 2023/2026 board-demand alignedTopic: corrosion-and-prevention

Which pairing is correct?

1sulphide ore—calcination in excess air2carbonate ore—roasting in excess air3sulphide ore—roasting in excess air4carbonate ore—electrolysis only

Question 15

High-activity extraction

Difficulty: hardSource: NCERT Section 3.4.5 and official 2025-26 SQP Q26 alignedTopic: corrosion-and-prevention

Why is sodium extracted by electrolytic reduction rather than carbon reduction?

1Sodium is below carbon in reactivity2Sodium has greater affinity for oxygen than carbon3Sodium chloride is a covalent liquid4Carbon is an ionic metal

Question 16

Thermit reaction

Difficulty: easySource: NCERT Figure 3.11 and 2023-2026 board-demand alignedTopic: corrosion-and-prevention

What is the main useful result of Fe2O3 + 2Al -> 2Fe + Al2O3 + heat?

1cold iron powder2molten iron that can join railway tracks3hydrogen for balloons4sodium metal

Question 17

Copper refining

Difficulty: mediumSource: NCERT Figure 3.12 and 2026 board Q28 alignedTopic: corrosion-and-prevention

Which setup is correct in electrolytic refining of copper?

1pure copper anode; impure copper cathode2impure copper anode; pure copper cathode3carbon anode; sodium cathode4both electrodes are iron

Question 18

Rusting control

Difficulty: easySource: NCERT Activity 3.14 and 2025 board Q30 alignedTopic: corrosion-and-prevention

In Activity 3.14, which tube rusts?

1nails with both ordinary water and air2nails in boiled water under oil3nails in dry air over anhydrous calcium chloride4all tubes equally

Question 19

Gold purity

Difficulty: mediumSource: NCERT Section 3.5.1 Do You Know alignedTopic: corrosion-and-prevention

What does 22-carat gold mean in the NCERT description?

122 parts gold and 2 parts copper or silver222 parts copper and 2 parts gold3completely pure gold4gold mixed only with mercury

Question 20

Copper hot-water tank

Difficulty: hardSource: NCERT Exercise 16 alignedTopic: ncert-exercises-and-revision

Why is copper preferred over steel for hot-water tanks?

1Copper reacts violently with steam2Copper is less reactive and does not react with water or steam3Steel is a non-metal4Copper is always cheaper than steel

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Metals and Non-metals Quiz

Select your answers

The sheet property

Physical-property exception

Activity 3.5

Amphoteric evidence

Copper in air

Metal with water

Calcium floats

Nitric acid exception

Iron and copper sulphate

Electron transfer

Solid versus molten

High melting point

Mineral and ore

Roasting and calcination

High-activity extraction

Thermit reaction

Copper refining

Rusting control

Gold purity

Copper hot-water tank

Preparing your questions...

Select your answers

The sheet property

Physical-property exception

Activity 3.5

Amphoteric evidence

Copper in air

Metal with water

Calcium floats

Nitric acid exception

Iron and copper sulphate

Electron transfer

Solid versus molten

High melting point

Mineral and ore

Roasting and calcination

High-activity extraction

Thermit reaction

Copper refining

Rusting control

Gold purity

Copper hot-water tank