a. Hydrolysis of (CH3 )3 SiCl followed by condensation b. Hydrolysis of CH3 SiCl3 followed by condensation c. Hydrolysis of (CH 3)4 Si by addition polymerisation d. Hydrolysis of (CH 3)2 SiCl 2 followed by condensation polymerisation Ans. d (11)
(a) v√r/g (b) 2v√r/g (c) 4v√r/g (d) √3r/g Ans. c (18)
a. Polymers b. Copolymer c. Addition d. Condensation polymer Ans. b (30)
(a) 531 N–m (b) 570 N–m (c) 520 N–m (d) 551 N–m Ans. a (4)
a. Polystyrene b. Protein c. Starch d. Nucleic acid Ans. b (6)
a. Butyal rubber b. Poly styrene c. Starch d. PVC Ans. a (9)
(a) 600% (b) 150% (c) 100% (d) 1500% Ans. c (7)
(a) Half (b) Same (c) Double …
(a) Equal to that on A (b) Four times that on A (c) Two times that on A (d) Half that on A Explanation-B (24)
a. Titanium tetrachloride and triphenyl aluminium b. Titanium tetrachloride and triethyl aluminium c. Titanium dioxide d. titanium isopropoxide Ans. b (9)
a. Solid polymer of nylon 66 b. liquid polymer of nylon 66 c. Gaseous polymer of nylon 66 d. Liquid polymer of nylon 6 Ans. b (4)
(a) FR (b) Fθ (c) FR/θ (d) FRθ Ans. d (25)
a. Condensation reaction between monomers b. corrdinate reaction between monomers c. Conversaion of monomers to monomers ions by protons d.Hydrolysis of monomers Ans. a (8)
(a) Equal to rotational kinetic energy (b) Double of rotational kinetic energy (c) Half of rotational kinetic energy (d) Four times the rotational kinetic energy Ans. c (17)
a. Sterospecific b. Non-metallic complexes c. Gaseous catalysts d. Universal in all polymerisation reactionos Ans. a (6)
(a) Time period (b) (Time period)2 (c) (Time period)–1 (d) (time period)–2 Ans. d (9)
a. Ziegler- Natta process b. Heating with peroxides c. Condensing in sealed tubes d. Condensing with styrenes Ans. a (12)
a. Below 10° C b. 10° to 50° C c. 50° to 80° C d. 80° to 140° C Ans. c (5)
(a) 1 J (b) 0.5 J (c) 0.7 J (d) 1.4 J Ans. c (5)
(a) v/R (b) Continuously increasing (c) Dependent on mass (d) Independent of radius (R) Ans. a (62)
a. Water b. Na 2 Co 3 c. A q. NaOH d. Aq. HCl Ans. c (7)
(a) 0.01 erg (b) 0.02 joule (c) 0.03 joule (d) 0.01 joule Ans. d (49)
a. Ziegler Natta catalyst b. Wilkinson’s catalyst c. Pd- catalyst d. Zeise’s salt catalyst Ans. a (10)
(a) 3MV2 (b) 4MV2 (c) 6 MV2 (d) 8MV2 Ans. d (381)
a. Peroxides b. Cuprous chooride c. Anhydrous zinc chloride d. Anhydrous AlCl3 Ans. a (44)
(a) 1/5 (b) 5/2 (c) 3/5 (d) 5/7 Ans. b (6)
a. PVC b. Nylon c. Terylene d. Polyamide Ans. a (6)
(a) 1 : 1 (b) 2 : 7 (c) 1 : 2 (d) 3 : 1 Ans. d (9)
a. Nylon – 66 b. Bakelite c. Terylene d. Teflon Ans. d (47)
a. Nylon 6 b. PVC c. Bakelite d. Buna-N Ans.c (10)
(a) Decreases (b) Remains constant (c) Increases (d) Becomes more at poles Answer: a (3)