Test: MCQs (One or More Correct Option): Carbohydrates, Amino Acids, Polymers & Miscellaneous | JEE Advanced - JEE MCQ

Glucose being an aldose responds to Tollen’s test while fructose, although a ketose, undergoes rearrangement in presence of basic medium (provided by Tollen’s reagent) to form glucose, which then responds to Tollen’s test.

The two is omeric forms (a – and b –) of D-glucopyronose differ in configuration only at C– 1; hence these are called anomers.

Cellulose is a polysaccharide composed of only Dglucose units. Every adjacent glucose units are joined by β-glycosidic linkage between C₁ of one glucose and C₄ of the next.
NOTE : Thus in every glucose units only three –OH groups are free to form triacetate.

Nylon and cellulose, both have in termolecular hydrogen bonding, polyvinyl chloride has dipoledipole interaction, while natural rubber has van der Waal forces which are weakest.

It is a β-pyranose hence it is an aldohexose.

We know that carbohydrates having acetal linkage are non-reducing while that with hemiacetal linkage are reducing. In the give structure,

X has acetal linkage, hence non-reducing.
Y has hemiacetal linkage, hence reducing.
Further X is a-anomer, while Y is β-anomer of D-(+)-glucose.

Condensation polymers are formed by condensation of a diol or diamine with a dicarboxylic acid.

Invert sugar is an equimolar mixture of D-(+) glucose and D(–) glucose.

• Specific rotation of invert sugar = 

• D-glucose on oxidation with Br₂-water pr oduces gluconic acid and not saccharic acid.