Number of stereoisomers possible for the following compound is

Question

Number of stereoisomers possible for the following compound is <img class="img-fluid question-image" alt="Question" src="https://cdn.tardigrade.in/q/nta/c-2zzuq0g8kxug0aab.jpg" /> (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-2zzuq0g8kxugpiox.jpg" /> 1 and 2 have plane of symmetry so, both are optically inactive and both will be counted as one each. 3 is optically active as there is no plane of symmetry, so it will be counted as two(given compound and its mirror image). Hence, total number of isomer is 1+1+2=4 .

Q. Number of stereoisomers possible for the following compound is

1 and 2 have plane of symmetry so, both are optically inactive and both will be counted as one each. 3 is optically active as there is no plane of symmetry, so it will be counted as two(given compound and its mirror image). Hence, total number of isomer is $1 + 1 + 2 = 4$ .