Question

Select the correct statement from the following option.

(a) When multiple bonds are present between two different atoms, electromeric shift towards the more electronegative atom takes place

(b) When multiple bonds are present between two similar atoms, the first possibility is symmetric alkenes or alkynes

(c) When multiple bonds are present between two similar atoms, the second possibility is asymmetric alkenes or alkynes

(d) All of the mentioned

I got this question in exam.

Enquiry is from Electromeric Effect topic in portion Reactivity of Molecules Reaction Mechanism of Engineering Chemistry I

Answer 1

Right choice is (d) All of the mentioned

To explain I would say: When multiple bonds are present between two different atoms, electromeric shift towards the more electronegative atom takes place. When multiple bonds are present between two similar atoms, the first possibility is symmetric alkenes or alkyne and the second possibility is asymmetric alkenes or alkynes.