Q

Can someone help me with this, Which of the following compounds can exist both as a pair of enantiomers and a trans pair of enantiomers?

Which of the following compounds can exist both as a pair of enantiomers and a trans pair of enantiomers?

• Option 1)

$CH_3CHClCH=CH_2$

• Option 2)

$CH_3CHClCH=CHCH_3$

• Option 3)

$CH_2=CH-CHOHCH=CH_2$

• Option 4)

$CH_2=CH-CHClCH=C(CH_3)_2$

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As we learnt in

Optically active compound -

Those compounds having capacity to rotate plane polarised light is called optically active compound.

- wherein

This molecule has one chiral centre, hence, exist both as a pair of enantiomer and a trans pair of enantiomer.

Option 1)

$CH_3CHClCH=CH_2$

Incorrect

Option 2)

$CH_3CHClCH=CHCH_3$

Correct

Option 3)

$CH_2=CH-CHOHCH=CH_2$

Incorrect

Option 4)

$CH_2=CH-CHClCH=C(CH_3)_2$

Incorrect

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