Question

Geometrical isomers result due to the
A
Free rotation about C – C
B
Restricted rotation about C=C
Ver
C С
Restricted rotation aboutC=C
D
Free rotation about C = C​

Answer 1

d is the correct answer

cause of geometrical isomerism: geometrical isomerism is due to the restricted or hindered rotation around the carbon-carbon double bond. due to the hindered rotation around carbon-carbon double bond, the relative positions of atoms or group attached to the doubly bonded carbon atoms get fixed.

Answer 2

Sigma bonds or saturated compounds can rotate around and shift. This makes geometrical isomers of non-substituted alkanes impossible because the atoms can shift back and forth.

Pi bonds, like those in double bonds, can't freely move around. Since each carbon in a double-bond chain can form another bond that doesn't move, you can create symmetrical isomers.

The rotation is restricted around carbon carbon double bond because the rotation leads to break the pi bond by which molecule losses its stability. So molecule does not change their position .there fore cis remains cis and trans remains trans in universe.they Show G.I (geometrical isomerism)

so option C is correct

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