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JEE Main 202126 FebruaryEvening Shift
Exam
JEE Main
Year
2021
Date
26 February
Shift
Evening Shift
Subject
Chemistry
Chapter
Biomolecules

JEE Main 2021 · 26 February · Evening Shift · Chemistry · Biomolecules

Seliwanoff test and Xanthoproteic test are used for the...

Seliwanoff test and Xanthoproteic test are used for the identification of _ and _ respectively.

Options

  1. Aaldoses, ketoses
  2. Bketoses, proteins
  3. Cproteins, ketoses
  4. Dketoses, aldoses

Correct answer

B. ketoses, proteins

Step-by-step solution

Seliwanoff test for ketose and Xenthoprotic test for proteins.

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. This test relies on the principle that, when heated, ketoses are more rapidly dehydrated than aldoses.

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