Which of the following statement’s are true?

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All molecules containing two (or) more chiral C-atoms must be optically active.

All molecules having one chiral C-atom is optically active

Molecules without chiral carbon atoms can be optically active

All molecules having two equal chiral C-atoms have 3-stereo isomers

answer is B, C, D.

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Detailed Solution

The presence of chiral carbon is the necessary but not sufficient condition for chirality. If a compound will have the plane of symmetry, a centre of symmetry or alternative axis of symmetry than in spite of the presence of chiral carbon it will be optically inactive. Therefore, statement present in option A is incorrect.

All molecules having two equal chiral C-atoms have 3-stereo isomers because the fourth compound has a centre of symmetry.

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