Molecules whose mirror image is non-superimposable over them are known as chiral. Which of the following molecules is chiral in nature?

(a) 2-bromobutane (b) 1-bromobutane

(3) 2-bromoprapane (d) 2-bromoprapane-2-ol

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Solution

The answer is (a). 2-bromobutane

Chiral/asymmetric carbon is that carbon in which has formed four bonds with four different groups. Let see the structural formula of the given compounds.

With the help of these structural formulae, it is very clear that 2-bromobutane in which asterisk mark carbon atom is bonded to four different atoms or groups. So, this molecule is chiral in nature. Other molecules do not contain four different atoms or groups.

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Similar questions

Which is the correct increasing order of boiling points of the following compounds?

1-bromoethane, 1-bromopropane , 1-bromobutane, Bromobenzene

(a) Bromobenzene < 1-bromobutane < 1-bromopropane < 1-bromoethane

(b) Bromobenzene < 1-bromoethane < 1-bromopropane < 1-bromobutane

(d) 1-bromoethane < 1-bromopropane < 1-bromobutane < Bromobenze

\begin{matrix} d & + & d a n d l & \to & (d) - (d) T h e (+) f o r m o f & A r a c e m i c m i x t u r e o f & + c h i r a l m o l e c u l e s & o t h e r m o l e c u l e s w i t h & (d) - (l) 50 % (d) a n d 50 % (l) \end{matrix}

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