Question

Which is not a polymer?

• A. Sucrose
• B. Enzyme
• C. Starch
• D. Teflon

Answer 1

Answer: (A)

(i) Teflon is polymer of tetrafluoroethylene $\left(C{F}_2=C{F}_2\right)$
(ii) Starch is polymer having formula ${\left(C_6{H}_{10}{O}_5\right)}_n$
(iii) Enzymes are proteins made of polypeptides.
(iv) Sucrose $\left(C_{12}{H}_{22}{O}_{11}\right)$ is a disaccharide.
It gives two molecules of monosaccharides on hydrolysis.
It is not polymer but it is dimer.
$\underset{\text{sucrose}}{C_{12}{H}_{22}{O}_{11}}+H_{2}O\stackrel{\mathrm{H}{}_{}^{}{}_{}^{+}\text{/invertase }}{\to }\underset{\text{glucose}}{C_6{H}_{12}{O}_6}+\underset{\text{ fructose }}{C_6{H}_{12}}{O}_6$