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Questions  

Give the reactivity in the decreasing order of the following alkynes towards nucleophilic addition reaction with MeOΘ/MeOH.

(I) 

(II) MeMe

(III) MeH

(IV) HH

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By Expert Faculty of Sri Chaitanya
a
(I) > (II) > (III) > (IV)
b
(I)>(IV)>(III)>(II)
c
(IV)>(III)>(II)>(I)
d
(II)>(III)>(IV)>(I)

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detailed solution

Correct option is B

Nucleophilic addition (NA) reaction is favoured by EWG, or easy leaving group or the acidic alkyne in this case.

ctaimg

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