ASSERTION \& REASON (1) If both Assertion (A) and Reason (R) are True and the Reason \( (R) \) i...
ASSERTION \& REASON
(1) If both Assertion (A) and Reason (R) are True and the Reason \( (R) \) is a correct explanation of the Assertion (A).
(2) If both Assertion (A) and Reason (R) are True but Reason (R) is not a correct explanation of the Assertion (A).
(3) If Assertion (A) is True but the Reason (R) is False.
(4) Assertion (A) is False but Reason (R) is True.
Assertion (A): \( \mathrm{PbI}_{4} \) does not exist because
Reason (R): Energy released during the formation of initially formed \( \mathrm{Pb}-\mathrm{I} \) bond is not enough to unpair \( 6 \mathrm{~s}^{2} \) electrons and excite one of them to higher orbital to have four unpaired electrons around lead atom.
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