Which one among the following molecules is chiral? · ABC26OR0921
Subject: Organic Chemistry · Chapter: Stereochemistry · Topic: Stereochemistry – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Easy
Which one among the following molecules is chiral?
(a)
(b)
(c)
(d)
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
ClHC=C=CHCl has two different groups at each end of an allene with an even number of cumulated double bonds, so it is axially chiral (c). In (a) one end carries two Cl atoms. (b), with three cumulated double bonds, is planar (cis/trans only). The biaryl in (d) has a ring with identical ortho groups.
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