Question

Assertion: Alkyl halides form alkenes when heated above `300^(@)`C
Reason `Ch_(3)CH_(2)` I reacts slowly with strong base when compared to `CD_(3)CH_(2)` i.
A. If both Assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. if assertion is true but reason is false.
D. if assertion is false but reason is true

Answer 1

Correct Answer - C
`CH_(3)CH_(2)I` reacts more rapidly with strong base in comparison to `CD_(3)CH_(2)I`. The elimination of HI (or DI) in presence of strong base shows `E_(2)` elimination. The rate determining step involves the breaking of C-H (or C-D) bond. The C-D bond being stronger than C-H and thus elimination is faster in case of `CH_(3)CH_(2)I`.