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Q.
Number of stereoisomers possible for the following compound is
NTA AbhyasNTA Abhyas 2022
Solution:
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 $1+1+2=4$ .