JEE Main 20202 SeptemberEvening Shift
- Exam
- JEE Main
- Year
- 2020
- Date
- 2 September
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Biomolecules
JEE Main 2020 · 2 September · Evening Shift · Chemistry · Biomolecules
The correct observation in the following reaction is: Sucrose → _...
The correct observation in the following reaction is:
Sucrose\mathop{\to}_{Cleavage ( Hydrolysis )}^{Glycosidicbond}A + B\mathop{\to}_{Reagent}^{Seliwanoff} ?$
Options
- AFormation of blue colour
- BGives no colour
- CFormation of red colour
- DFormation of violet colour
Correct answer
C. Formation of red colour
Step-by-step solution
Seliwanoff reagent Resorcinol Conc.
Seliwanoff's test is a chemical test which distinguishes between aldose and ketose sugars. If the sugar contains a ketone group, it is a ketose. If a sugar contains an aldehyde group, it is an aldose.
Ketoses show red colour with Seliwanoff Reagent.