Which molecules are achiral and chiral?

Question

$CH_2BrF$
$H_2C=CHCF_3$
$HPCIBrCH_3^+$
$Br_3C CHClBr$
$H_3C CH_2F$
$H_3CF$
$H_3C CHBrCH_2CH_3$
$PCl_2BrCH_3^+$

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Answer 1 · 2017-01-29T09:41:57

Chiral molecules are molecules that CANNOT be superimposed on their mirror image.

$H_2CBrF$ is achiral.

$H_2C=CHCF_3$ is achiral.

$Br_3C-C^("*")H(Cl)Br$ has a chiral centre (starred), and could support a pair of optical isomers.

$H_3C-CH_2F$ is achiral.

$H_3CF$ is achiral.

$H_3C-""^("*")C(H)(Br)CH_2CH_3$ is chiral.

$""^+PBrCl_2(CH_3)$ is achiral.