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Periodic Table and Periodicity question

2023 · 31 Jan · Shift 2 · Q9
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Periodic Table and Periodicity question

2023 · 31 Jan · Shift 2 · Q9

JEE MainChemistryPeriodic Table and PeriodicityMCQ+4 / −1
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R) Assertion (A): The first ionization enthalpy of 3 d3 \mathrm{~d}3 d series elements is more than that of group 2 metals Reason (R): In 3d series of elements successive filling of d-orbitals takes place. In the light of the above statements, choose the correct answer from the options given below :
  1. A
    Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. B
    (A) is true but (R) is false
  3. C
    Both (A) and (R) are true but (R)(\mathbf{R})(R) is not the correct explanation of (A)
  4. D
    (A) is false but (R) is true
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