Question

Which of the following statements is false?

• A. Monomer of natural rubber is isoprene.
• B. Both starch and cellulose are made up of glucose units.
• C. Artificial silk is derived from cellulose.
• D. $\text{Nylon}-6,6$ is an elastomer.

Answer 1

The correct option is D $\text{Nylon}-6,6$ is an elastomer.

Nylon$-$6,6 is not an elastomer. It is fibre. It has strong intermolecular forces due to hydrogen bonds between amide groups.

Hydrogen bonds are present between $-NH$ group of one chain and $-\underset{\underset{\text{O}}{||}}{C}-$ group of other chain.

The option (D) represents a false statement.

Option D is correct.