Question

Assertion: Alkali metal have smallest size in period.
Reason: They are at extreme left of the periodic table.

In the following questions a state of Assertion is followed by a statement of Reason. Mark the correct choice as:
(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(c) If Assertion is true but Reason is false.
(d) If Reason is true but Assertion is false.
(e) If both Assertion and Reason are false.

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Answer 1

Answer:

(d) If reason is true but assertion is false.

Explanation:

Alkali metals have biggest size and non metals have smallest size. As non metals have more valence electrons, the effective nuclear charge is more and they attract more and reduces in size.

Answer 2

Explanation:

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