Question

In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question. (a) Both A and R is true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) Both A and R are false. ASSERTION (A):- Helium and Beryllium have similar outer electronic configuration of the type ns2. REASON:- Both are chemically inert..



a

b

c

d

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Answer 1

Explanation:

C option is correct because it is true that both have same electronic configuration but both are not chemically innert