Question

Assertion: Rate of reaction of alkyl halide in Williamson’s synthesis reaction is 1$^{\circ}$RX > 2$^{\circ}$RX > 3$^{\circ}$RX.
Reason: It is a type of bimolecular substitution reaction $(S_N2)$.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (A)

Williamson's synthesis occurs by $S _{ N } 2$ mechanism and primary alkyl halides are most reactive in $S _{ N } 2$ reactions.