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  • 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 d series elemen

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 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 :
 

Option: 1

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


Option: 2

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


Option: 3

(A) is true but (R) is false
 


Option: 4

(A) is false but (R) is true


Answers (1)

d-block elements have more first I.E. than group 2 elements due to poor shielding of d-orbitals

Posted by

Ramraj Saini

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