Question

29. Consider the following statements
(1) Stability of triphenyl methyl carbocation can be explain
only by resonance effect.
(2) p-Methoxy benzyl carbocation is more stable the
p-nitrobenzyl carbocation.
(3) Singlet carbene is less stable than the triplet carbene.
(4) Benzyne behaves as nucleophile.
(a) 1 and 2
(b) 3 and 4
(c) 2 and 4
(d) 1, 2, 3 and 4​

Answer 1

Answer:

option d

Explanation:

(1) - correct

(2)-correct

(3)-correct,Triplet carbene is more stable than singlet carbene because it has two unpaired electrons and it has 33kJ/mol energy i.e lower than singlet carbene and triplet carbene is present in ground state which is more stable than excited state but singlet carbene is present in excited state.

(4)- correct

1,2,3 and 4 ,all are correct

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