Question

Assertion (A) : The metals and alloys are good conductors of electricity.

Reason (R) : Bronze is an alloy of copper and tin and it is not a good conductor of electricity.

• A. Both (A) and (R) are true and (R) is correct explanation of the assertion
• B. Both (A) and (R) are true but (R) is not the correct explanation of the assertion
• C. (A) is true but (R) is false
• D. (A) is false but (R) is true.

Answer 1

The correct option is C

(A) is true but (R) is false

Explanation for Correct option

Assertion:-

• Metals is a substance that conducts electricity due to the presence of free electrons.
• The free electrons carry the charge all over the metals and thus make them a good conductor of electricity.
• Alloys are a mixture of metals, so they also possess similar properties to metals.
• As a result they too are good conductors of electricity.
• Hence Assertion is true.

Explanation for reason:-

• Alloys are a mixture of metals, so they also possess similar properties to metals.
• As a result they too are good conductors of electricity.
• Bronze is a mixture of copper and tin which both are metals.
• Thus bronze conducts electricity too.
• Hence reason is not true

Therefore, option (C) (A) is true but (R) is false is the correct answer.