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Assertion (A): Both cis 1,3-dimethyl cyc...

Assertion (A): Both cis `1,3`-dimethyl cyclobutane and trans `1-3`, dimethyl cyclobutane are optically inactivity
Reason (R ): cis-1,3- Dimethyl cyclobutane has the plane of symmetry, wheras trans form has the centre of symmetry.

A

If both (A) and (R ) are true and (R ) is the correct explanation for (A).

B

If both (A) and (R ) are true and (R ) is not the true explanation for (A)

C

If (A) is true, but (R ) is false.

D

If both (A) and (R ) are false

Text Solution

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The correct Answer is:
A
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Assertion [M(AA)_(3)]^(n+-) is optically inactive Reason Plane of symmetry and center of symmetry are not present .