Classification of Elements Part 2

Section: Chemistry

Question : 63 of 72

Marks: +1, -0

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]

Both A and R are true and R is the correct explanation of A
A is true but R is false
A is false but R is true
Both A and R are true but R is NOT the correct explanation of A

Validate

Go to Question:

Prev Question

Next Question