Examine the ten structural formulas shown in fig. & select that satify each of the following conditions. Write one or more (a through J) in each answer box.

A. Which compounds give and `S_(N^2)` substitution reaction on treatment with alcoholic NaSH ?
B. Which compounds give and `E_2` elimation reaction on treatment with alcoholic KOH ?
C. Which compounds do not react under either of the previous reaction conditions ?

Answer

A-c,d,e,f,h; B-b,c,f,i; C-a,g,j

Explanation

(A) `S_(N_2)` favour if `1^@ & 2^@` alkyl halide are available except vinyl, aryl, neopentyl, bridgehead halide.
(B) If `Beta` hydrogensare available then `E_2` possible.
(C) Aryl, neopentyl and bridgehead halide do not show `S_(N^1), S_(N^2),E_1 E_2`