MCQ
Which of the following is an chiral compound
- AHexane
- BMethane
- C$n-$butane
- ✓$2,3,4-$trimethyl hexane
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The order of decreasing reactivities of these alcohols towards nucleophilic substitution with $HBr$ is
$1.\,\,(CH_3)_2 - \mathop C\limits^ + - CH_2 - CH_3$
$2.\,\,(CH_3)_3 - \mathop C\limits^ + $
$3.\,\,(CH_3)_2 - |\mathop C\limits^ + H|$
$4.\,\,CH_3 - \mathop C\limits^ + H_2$
$5.\,\,\mathop C\limits^ + H_3$