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The first (Delta(i), H(1)) and the secon...

The first (`Delta_(i), H_(1)`) and the second (`Delta, H_(2)`) ionisation enthalpies (in kJ mo`l^(- 1)` ) and the `(Delta_(eg)H`) electron gain enthalpy (in kJ mo`l^(-1)` ) of a few elements are given below :

Which of the above elements is likely to be :
the least reactive element?

A

P

B

Q

C

R

D

T

Text Solution

Verified by Experts

The correct Answer is:
D
Value corresponds to noble gases.Hence , T is inert toward chemical reactivity.
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The first ( Delta_(i), H_(1) ) and the second ( Delta, H_(2) ) ionisation enthalpies (in kJ mo l^(- 1) ) and the (Delta_(eg)H ) electron gain enthalpy (in kJ mo l^(-1) ) of a few elements are given below : Which of the above elements is likely to be : a reactive metal

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