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Question (1)

QN00841

Which property of aluminium allows it to be made into thin foils for food wrapping?

(A) Sonority
(B) Brittleness
(C) Malleability
(D) Corrosion

Correct Answer: C

Explanation:

Metals that can be beaten into thin sheets are called malleable.

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Question (2)

QN00842

A student beats four materials with a hammer. Which material is most likely to flatten instead of breaking?

(A) Sulfur
(B) Coal
(C) Aluminium
(D) Wood

Correct Answer: C

Explanation:

Aluminium is a malleable metal.

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Question (3)

QN00843

The lustre shown by metals is called:

(A) Metallic shine
(B) Metallic lustre
(C) Surface glow
(D) Reflection property

Correct Answer: B

Explanation:

Metals have a shiny appearance called metallic lustre.

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Question (4)

QN00844

Which of the following pairs contains only non-metals?

(A) Copper and aluminium
(B) Iron and sulfur
(C) Coal and sulfur
(D) Iron and coal

Correct Answer: C

Explanation:

Coal and sulfur are non-metals.

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Question (5)

QN00845

A blacksmith heats iron before shaping it into tools because heated iron becomes:

(A) Brittle
(B) Dull
(C) Easier to hammer into shape
(D) Non-conducting

Correct Answer: C

Explanation:

Heating softens iron and helps in shaping.

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Question (6)

QN00846

Which metal mentioned in the chapter exists in liquid state at room temperature?

(A) Sodium
(B) Potassium
(C) Mercury
(D) Magnesium

Correct Answer: C

Explanation:

Mercury is the only metal that is liquid at room temperature.

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Question (7)

QN00847

Sodium and potassium can be cut with a knife because they are:

(A) Brittle
(B) Soft metals
(C) Non-metals
(D) Liquids

Correct Answer: B

Explanation:

Sodium and potassium are very soft metals.

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Question (8)

QN00848

A student observes that a material breaks into pieces when hammered. The material is said to be:

(A) Ductile
(B) Sonorous
(C) Malleable
(D) Brittle

Correct Answer: D

Explanation:

Brittle materials break on hammering.

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Question (9)

QN00849

Gold and silver are mainly used for making jewellery because they are:

(A) Poor conductors
(B) Malleable and ductile
(C) Brittle and dull
(D) Non-sonorous

Correct Answer: B

Explanation:

Gold and silver can be shaped easily into sheets and wires.

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Question (10)

QN00850

The property by which a material can be drawn into wires is called:

(A) Sonority
(B) Conductivity
(C) Ductility
(D) Corrosion

Correct Answer: C

Explanation:

Ductility is the property of being drawn into wires.

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Question (1)

Which property of aluminium allows it to be made into thin foils for food wrapping?

Explanation:

Link:

Question (2)

A student beats four materials with a hammer. Which material is most likely to flatten instead of breaking?

Explanation:

Link:

Question (3)

The lustre shown by metals is called:

Explanation:

Link:

Question (4)

Which of the following pairs contains only non-metals?

Explanation:

Link:

Question (5)

A blacksmith heats iron before shaping it into tools because heated iron becomes:

Explanation:

Link:

Question (6)

Which metal mentioned in the chapter exists in liquid state at room temperature?

Explanation:

Link:

Question (7)

Sodium and potassium can be cut with a knife because they are:

Explanation:

Link:

Question (8)

A student observes that a material breaks into pieces when hammered. The material is said to be:

Explanation:

Link:

Question (9)

Gold and silver are mainly used for making jewellery because they are:

Explanation:

Link:

Question (10)

The property by which a material can be drawn into wires is called:

Explanation:

Link:

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