Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R: Assertion A: The first ionisation enthalpy decreases across a period.
Reason R: The increasing nuclear charge outweighs the shielding across the period.
In the light of the above statements, choose the most appropriate from the options given below: [29-Jan-2024 Shift 1]

Question

Examsnet · Accepted Answer

Correct Answer is : A is false but R is true

JEE Main Chemistry Class 11 Classification of Elements and Periodicity in Properties 2 Questions