HUMAN NUTRITION

NUTRITION

CARBOHYDRATES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This test will give purple or violet coloured ring at the junction as the positive result for carbohydrates.
A
Molisch test
B
Anthrone test
C
Iodine test
D
Barfoed test
Explanation: 

Detailed explanation-1: -All carbohydrates (monosaccharides, disaccharides, and polysaccharides) pass the Molisch test. It is based on Sulphuric acid dehydrating the carbohydrate to produce an aldehyde, which condenses with two molecules of -naphthol, resulting in the appearance of a purple ring at the interface.

Detailed explanation-2: -Answer: Molisch test results are positive for all carbohydrates (monosaccharides, disaccharides, and polysaccharides). It works by dehydrating the carbohydrate with Sulphuric acid to make an aldehyde, which then condenses with two molecules of ɑ-naphthol to form a purple ring at the interface.

There is 1 question to complete.