Question

Which of the carbon atoms present in the molecule given below are asymmetric?

$$\begin{array}{c}\phantom{}\mathrm{HO}\phantom{.....}\mathrm{OH}\phantom{..}\mathrm{H}\phantom{.....}\mathrm{O}\phantom{..}\\ \phantom{..}\mathrm{\setminus }\phantom{.....}|\phantom{....}|\phantom{.....}//\phantom{.}\\ \stackrel{\mathrm{a}}{\mathrm{C}}-\stackrel{\mathrm{b}}{\mathrm{C}}-\stackrel{\mathrm{c}}{\mathrm{C}}-\stackrel{\mathrm{d}}{\mathrm{C}}\\ \phantom{..}//\phantom{.....}|\phantom{....}|\phantom{....}\phantom{.}\mathrm{\setminus }\phantom{...}\\ \phantom{}\mathrm{O}\phantom{......}\mathrm{H}\phantom{...}\mathrm{OH}\phantom{...}\mathrm{H}\phantom{}\end{array}$$

पर्याय

• a, b, c, d

• b, c

• a, d

• a, b, c

Answer 1

b, c

Explanation:

Carbon has four valencies. If a carbon atom satisfies all of its four valencies with four different groups then it is termed asymmetric/chiral carbon. In the given compound, b and c carbon are bonded to four different groups, so these are asymmetric.