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Give the reactivity in the decreasing or...

Give the reactivity in the decreasing order of the following alkynes towards nucleophilic addition reaction with `MeO^(Θ)//MeOH`.
(I) (II) `Me--=-Me`
(III) `Me--=-H` (IV) `H--=-H`

A

(a) `(I)gt(II)gt(III)gt(IV)`

B

(b) `(I)gt(IV)gt(III)gt(II)`

C

(c) `(IV)gt(III)gt(II)gt(I)`

D

(d) `(II)gt(III)gt(IV)gt(I)`

Text Solution

Verified by Experts

The correct Answer is:
B
Nucleophilic addition (NA) reaction is favoured by EWG, so the answer is (b).
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