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Assertion: Addition of Br(2) to c9s-but-...

Assertion: Addition of `Br_(2)` to c9s-but-2-ene is stereoselective.
Reason: `S_(N^(2))` reactions are stereospecific as well as stereoselective.

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 the assertion and reason both are false

Text Solution

Verified by Experts

The correct Answer is:
B
A reaction is said to be stereoselective if a particular stereoisomer can give two or more stereoisomeric products but gives one of them in greater amount than the other or even to the exclusion of the other. So, addition of `Br_2` to cis-but-2-ene is stereoselective since it gives only (pm) 2, 3-dibromobutane.
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