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Given below are two statements: One is labelled as Assertion(A) and the other is labelled as Reason(R) :
Assertion (A) : 'He' and 'Be' both have the same outer electronic configuration, like $n s^{2}$ type.
Reason (R) : Both are Chemically inert.
In the light of the above statements, choose the correct answer from the options given below :

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if both A and R are false

if A is true but R is false.

if both A and R are true but R is NOT correct explanation of A

if both A and R is true and R is correct explanation of A

answer is C.

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Detailed Solution

He is inert but beryllium is not , it is reactive metal

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