| Assertion: Alkyl halides form alkenes when heated above \[300{}^\circ C\]. |
| Reason: \[C{{H}_{3}}C{{H}_{2}}CI\] reacts slowly with strong base as compared to \[C{{H}_{3}}C{{H}_{2}}I\]. |
A) Assertion and reason both are correct statements and reason is correct explanation for assertion.
B) Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C) Assertion is correct statement but reason is wrong statement.
D) Assertion is wrong statement but reason is correct statement.
Correct Answer: C
Solution :
\[C{{H}_{3}}C{{H}_{2}}Cl\] reacts more rapidly with strong base in comparison to \[C{{D}_{3}}C{{H}_{2}}l\]. The elimination of HI (or Dl) in presence of strong base shows E2 elimination. The rate determining step involves the breaking up of C-H (or C-D) bond. The C-D bond being stronger than C-H bond is difficult to break.
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