A) Esterification
B) Inversion
C) Saponification
D) Hydration
Correct Answer: B
Solution :
The hydrolysis of sucrose brings about a change in the sign of rotation, from dextro (+) to laevo (-) and such a change is known as inversion. Sucrose is dextrorotatory but on hydrolysis, it gives dextrorotatory glucose and laevorotatory fructose as follows: \[\underset{\text{Sucrose}}{\mathop{{{C}_{12}}{{H}_{22}}}}\,{{O}_{11}}+{{H}_{2}}O\xrightarrow{CHI}\underset{\text{D}-\text{glucose}}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\,+\underset{D-\text{fructose}}{\mathop{{{H}_{6}}{{H}_{12}}{{O}_{6}}}}\,\] \[{{[\alpha ]}_{D}}=+66.5\] \[{{[\alpha ]}_{D}}=+{{52.5}^{o}}{{[\alpha ]}_{D}}=-{{92.4}^{o}}\] Hence, the correct option is (b).
You need to login to perform this action.
You will be redirected in
3 sec
