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Assertion (A) : Metallic character order...

Assertion (A) : Metallic character order is
`K gt Mg gt Al gt B`.
Reason (R ) : Along the period `(rarr)` metallic character increases and decreases down the group `(darr)`.

A

If both Assertion (A) and (R ) are correct and Reason (R ) is the correct explanation of Assertion (A).

B

If both (A) and (R ) are correct but (R ) is not the correct explanation for (A).

C

If (A) is correct but (R ) is not correct.

D

If (A) and (R ) are correct

Text Solution

Verified by Experts

The correct Answer is:
C
Correct reason: Metallic character decreases along the period `(rarr)` but increases down the group `(darr)`.
Thus `Al` is more metallic than `B` (group 13).
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