Y alkanes and alkenes do not show geometrical isomerism

1.	Y alkanes and alkenes do not show geometrical isomerism
Answer» Sigma bonds can rotate around and shift. This makes 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. ALKENES have geometrical isomerism. Alkynes don't have geometrical isomerism.

Answer»

Sigma bonds can rotate around and shift. This makes 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.

ALKENES have geometrical isomerism.

Alkynes don't have geometrical isomerism.

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Y alkanes and alkenes do not show geometrical isomerism

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