Question

In the following question 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. Assertion (A): Atomic size increases along a period. Reason (R): Effective nuclear charge increases as the atomic number increases resulting in the increased attraction of electrons to the nucleus. a)Both A and R are 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.​

Answer 1

Answer:

(b). Assertion and reason both are correct statements and reason is the correct explanation of assertion ionisation enthalpy increases along a period because effective nuclear charge increases and atomic size decreases.

Explanation:

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