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  4. trans-3,6-Dimethyl oct-4-ene (A) exists in two diastereomers (I)and (II) <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/86a703bfd6d56770e63dec9d8e3c27c5-.png /> If the stereochemistry about the double bond in(A) is cis-, the total number of stereoisomers for (A) is:

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Q. trans-3,6-Dimethyl oct-4-ene (A) exists in two diastereomers (I)and (II)
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If the stereochemistry about the double bond in(A) is cis-, the total number of stereoisomers for (A) is:

Hydrocarbons

Solution:

If compound (a) is cis, we get two diastereomers, (III) and (IV). (III) is meso (O.I.A.) due to plane of symmetry. (IV) is 0.A. (two enantiomers). Total stereosiomers when (A) is cis $=3$

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