Multiple choice question

5 cgqydksa ds izdkjksa esa ls dkSu&lk cgqyd la?kuu cgqyd gS&
(a) uk;ykWu&66 (b) MSØku (c) cSdsykbV (d) mijksDr lHkh
Out of the types of polymers which one is condentation, polymer–
(a) Nylone–66 (b) Decron (c) Bekelite (d) All above
6 pj.k o`f) cgqyd fuEu esa ls dkSu&lk gS&
(a) fXyIVy (b) ih-oh-lh- (c) C;wVkMkbu (d) buesa ls dksbZ ugh
Out of the following which one is step growth polymer–
(a) Glyptal (b) P.V.C. (c) Butadyne (d) None of these
7 jcj ds oqYduhdj.k esa iz;qDr gksrk gS&
(a) QkLQksjl (b) xa/kd (c) QkjeYMhgkbM (d) fQukWy
In vulcanization of rubber which one is used–
(a) Phosphorous (b) Sulphur (c) Formaldehyde (d) Phenol
8 ikWyh foukby DyksjkbM dk lgh lw= gksxk&
Correct formula of poly vinyl chloride will be–
(a) n CH 2 = CHCl (b)
97
Cl
(—CH 2—CH—)
n
(c) —CH 2 —CCl=CH—CH 2 — (d) (—CH 2 —CCl=CH—CH 2 —)n
9 fu;ksfizu dk lw= gS&
Formula of Neoprene is–
(—CH 2—CH=CH—CH 2—) n
(a)
Cl
O
(c)
(—NH—(CH ) —C—) n
2 5
=
Cl
(b)
(—CH 2—CH—)
n
(d) None of these
10 VSjhyhu dk jklk;fud uke gS&
(a) ikWyh ,fFkyhu XykbdkWy VSjkFkSysV (b) VSjkFkSfyu
(c) fXyIVy FkSysV (d) buesa ls dksbZ ugha