CBSE 2026 · Region 3 · Set 3 · Q28

Give reasons for the following: (a) Haloalkanes react with KCN to form alkyl cyanides, while with AgCN, they form isocyanides. (b) is more reactive…

Give reasons for the following :

(a)

Haloalkanes react with KCN to form alkyl cyanides, while with AgCN , they form isocyanides.

(b)

(b)

is more reactive towards $\displaystyle \mathrm{S}_{\mathrm{N}} 2$ displacement as compared to

(b)

(c)

Grignard reagents should be prepared under anhydrous conditions.