Assertion: The metallic character increases as we go down the group.

Reason: Increase in size decreases the ionisation energy.

The assertion is false but the reason is true.

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The assertion is true but the reason is false.

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Both assertion and reason are true but the reason is not the correct explanation for the assertion.

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Both assertion and reason are true and the reason is the correct explanation for the assertion.

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Solution

The correct option is D
Both assertion and reason are true and the reason is the correct explanation for the assertion.

The metallic character increases as we go down the group since the size of atoms increases which results in the decrease of ionisation energy. So it is easy for an element with low ionisation energy to lose or donate electrons.

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Similar questions

Give scientific reasons:

1. Atomic size increases down the group.

2. Metallic character decreases from left to right in a period.

3. Elements in the same group show same valency.

Assertion: The metallic character increases as we go down the group.

Reason: Increase in size decreases the ionisation energy.

As u go down a group the ionisation energy increases or decreases

Assertion: Reactivity of alkali metals decreases down the group-1.

Reason: Atomic size of the alkali metal atoms increases down the group-1.

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