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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

 
Answers (1)
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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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