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:

(B) Both A and R are true but R is NOT the correct explanation of A

(C) Both A and R are true and R is the correct explanation of A

Classification of Elements and Periodicity in Properties: JEE Main 2024 Chemistry question

JEE Main 2024 · 29 Jan, Morning shift · Q1621

JEE Main 202429 Jan, Morning shiftChemistryMediumClassification of Elements and Periodicity in Properties127× since 2002

Given below are two statements : one is labelled as Assertion

\mathbf{A}

and the other is labelled as Reason

\mathbf{R}

: Assertion A : The first ionisation enthalpy decreases across a period. Reason

\mathbf{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 :

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JEE Main 2024 Classification of Elements and Periodicity in Properties Question with Solution (29 Jan Morning shift, Q1621) | JEE Arc