Question

7. An alkyl bromide produces a single alkene when it reacts
with sodium ethoxide and ethanol. This alkene on
hydrogenation produces 2-methylbutane. What is the
identity of the alkyl halide ?
a) 1-Bromo-2,2-dimethyl propane b) 1- Bromobutane
c) 1-Bromo-2-methylbutane
d) 2-Bromo-2-methylbutane
1) a, b 2) a,b,c 3) a, c, d 4) b, c, d​

Answer 1

Answer:

Q. Identify X and Y.

CH3Br−→−−−−−−C2H5OC2H5MgX−→−H+Y(CH3)3COH

X Y

(a) C2H5MgBr (CH3)2C=O

(b) C2H5OH CH3Br

(c) CH3MgBr (CH3)2C=O

(d) CH3MgBr CH3CHO

Haloalkanes and Haloarenes

Explanation: