Question

Assertion (A): The valency of element X having atomic number 18 is 0.
Reason (R): An atom of element X contains 8 valence electrons.

• A. Both A and R are false
• B. A is true but R is false
• C. Both A and R are true, and R is the correct explanation of A
• D. Both A and R are true, but R is not the correct explanation of A

Answer 1

The correct option is C Both A and R are true, and R is the correct explanation of A

Option (a) is correct.