NEET Practice Questions - Chemistry - Polymers

The monomer of the polymer

 is :-

(a) 

(b) ${\left({\mathrm{CH}}_3\right)}_2\mathrm{C}=\mathrm{C}{\left({\mathrm{CH}}_3\right)}_2$

(c) ${\mathrm{CH}}_3\mathrm{CH}=\mathrm{CH}·{\mathrm{CH}}_3$

(d) ${\mathrm{CH}}_3\mathrm{CH}={\mathrm{CH}}_2$

Which can absorb over 90% of its own mass of water and does not stick to wound ?

(a) Rayon

(b) Gun cotton

(c) Thiokol

(d) Saran

Thermoplastics are:

(a) linear polymers

(b) soften or melt on heating 

(c) molten polymer can be moulded in desired shape

(d) all of the above

$$\begin{gathered} -\left[\mathrm{NH}{\left({\mathrm{CH}}_2\right)}_6\mathrm{NHCO}{\left({\mathrm{CH}}_2\right)}_4\mathrm{CO}\right]{-}_n \mathrm{is} \mathrm{a} \\ \left[2006\right] \\ \left(\mathrm{a}\right) \mathrm{copolymer} \\ \left(\mathrm{b}\right) \mathrm{additional} \mathrm{polymer} \\ \left(\mathrm{c}\right) \mathrm{thermo}-\mathrm{setting} \mathrm{polymer} \\ \left(\mathrm{d}\right) \mathrm{homopolymer} \end{gathered}$$

Which of the following natural products is not a polymer ?

(a) DNA

(b) Cellulose

(c) ATP

(d) Urease

Synthetic human hair wings are made from a copolymer of vinyl chloride and acrylonitrile and is called:

(a) PVC

(b) polyacrylonitrile

(c) cellulose

(d) dynel

Nylon-66 is a polyamide obtained by the reaction of

(a) $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH} + {\mathrm{H}}_2{\mathrm{NC}}_6{\mathrm{H}}_4{\mathrm{NH}}_2 - (p)$

(b) $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH} + {\mathrm{NH}}_2({\mathrm{CH}}_2{)}_6{\mathrm{NH}}_2$

(c) $\mathrm{COOH}({\mathrm{CH}}_2{)}_4\mathrm{COOH} + {\mathrm{NH}}_2({\mathrm{CH}}_2{)}_4{\mathrm{NH}}_2$

(d) ${\mathrm{COOHC}}_6{\mathrm{H}}_4\mathrm{COOH} - \left(p\right) + {\mathrm{NH}}_2({\mathrm{CH}}_2{)}_6{\mathrm{NH}}_2$

Which one is protein fibre ?

(a) Cotton

(b) Rayon

(c) Silk

(d) Polyster

Bakelite is prepared by the reaction between

(a) urea and formaldehyde

(b) ethylene glycol

(c) phenol and formaldehyde

(d) tetramethylene glycol

Terylene is a condensation polymer of ethylene glycol and

(a) benzoic acid

(b) phthalic acid

(c) salicylic acid

(d) terephthalic acid