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Periodic Table and Periodicity question

2024 · 29 Jan · Shift 1 · Q2
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  5. /2024 · 29 Jan · Shift 1 · Q2

Periodic Table and Periodicity question

2024 · 29 Jan · Shift 1 · Q2

JEE MainChemistryPeriodic Table and PeriodicityMCQ+4 / −1
Given below are two statements : one is labelled as Assertion A\mathbf{A}A and the other is labelled as Reason R\mathbf{R}R: Assertion A : The first ionisation enthalpy decreases across a period. Reason R\mathbf{R}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 :
  1. A
    A\mathbf{A}A is false but R\mathbf{R}R is true
  2. B
    Both A\mathbf{A}A and R\mathbf{R}R are true but R\mathbf{R}R is NOT the correct explanation of A\mathbf{A}A
  3. C
    Both A\mathbf{A}A and R\mathbf{R}R are true and R\mathbf{R}R is the correct explanation of A\mathbf{A}A
  4. D
    A\mathbf{A}A is true but R\mathbf{R}R is false
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