Basic strength of CH ≡ C(I); CH2 ≡ CH(II) and CH3 CH (III) will be in order (a) I < II < III (b) II < III < I (c) III < II < I

Question

Basic strength of CH \(\equiv\) \(\overline C(I)\); CH₂ \(\equiv\) \(\overline CH(II)\)  and CH₃ \(\overline CH\) (III) will be in order

(a) I < II < III

(b) II < III < I

(c) III < II < I

(d) III < I < II

Answer 1

Answer is (a) I < II < III

Electronegativity of carbon atom :

SP > SP² > SP³.

∴ Acidic character follows the order

Hence, order of basic strength: