Choose the correct option(s) from the followi | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) $(1)$ Natural rubber is cis-polyisoprene. Thus,statement $(1)$ is incorrect.$(2)$ Nylon-$6$ is formed by the polymerization of caprolactam and con

Vedclass · Accepted Answer

$2, 4$

Vedclass · Answer

(C) $(1)$ Natural rubber is cis-polyisoprene. Thus,statement $(1)$ is incorrect.$(2)$ Nylon-$6$ is formed by the polymerization of caprolactam and contains amide linkages $(-NH-CO-)$. Thus,statement $(2)$ is correct.$(3)$ Cellulose is a linear polymer of $\beta-D$-glucose units joined by $\beta$-glycosidic linkages. Thus,statement $(3)$ is incorrect.$(4)$ Teflon is prepared by heating tetrafluoroethene $(CF_2=CF_2)$ in the presence of a persulphate catalyst at high pressure. Thus,statement $(4)$ is correct.Therefore,statements $(2)$ and $(4)$ are correct.

List-$I$ (Use)	List-$II$ (Substance)
$A$. Electrodes in batteries	$II$. Polyacetylene
$B$. Welding of metals	$III$. Oxyacetylene
$C$. Toys	$I$. Polypropylene

Similar Questions

Match the following:
List-$I$ (Use) List-$II$ (Substance)
$A$. Electrodes in batteries $II$. Polyacetylene
$B$. Welding of metals $III$. Oxyacetylene
$C$. Toys $I$. Polypropylene
The correct answer is

$A$ polymer with high chemical stability has a melting point $(M.P.)$ of $327\ ^\circ C$ and the density of a completely crystalline sample is $2.3\ g/cm^3$. It is:

Which of the following are synthetic rubbers?
$(i)$ Terylene
$(ii)$ Buna$-S$
$(iii)$ Buna$-N$
$(iv)$ Neoprene
$(v)$ Polyacrylonitrile

Assertion: Rayon is a semi-synthetic polymer whose properties are better than natural cotton.
Reason: Mechanical and aesthetic properties of cellulose can be improved by acetylation.

$R$ is one of the monomers for the formation of a polymer called

Vedclass Test Series

Exam Paper Generator

Online Exam Module