Given below are two statements: one is labelled as Assertion A and the other is labelled…
Chemistry · JEE Main · NTA Exams — Classification of Elements and Periodicity in Properties
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:
(Jee Main 2024)
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:
(Jee Main 2024)
- Both A and R are true and R is the correct explanation of A.
- is true but is false.
- A is false but is true.
- Both A and R are true but R is NOT the correct explanation of A.
Answer
(C) A is false but is true.
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