(a) teflon
(b) bakelite
(c) vitol
(d) gleptol
Ans: (b)
240. The plastic used in the preparation of non-sticky utensils is :
(a) backelite
(b) lac
(c) vitol
(d) Teflon
Ans: (d)
241. The first man made (artificial) silk is: [RRB ASM/GG 2003]
(a) reyon
(b) nylon
(c) polyster
(d) tricot
Ans: (b)
242. Which one of the following is not biodegradable? [CDS 2010]
(a) Woollen mat
(b) Silver Foil
(c) Leather bag
(d) Jute basket
Ans: (b)
243. Nylon is a:
(a) vinyl polymer
(b) polyamide
(c) polyster
(d) poly saccharide
Ans: (b)
244. Which of the following is not an explosive? [UPPCS (Pre) 2001]
(a) TNT
(b) TNG
(c) Cyclo trimethylene trinitrotremin
(d) Nitro chloroform
Ans: (d)
245. Which of the following is called Noble"s oil?
(a) Trinitro Glycerine (TNG)
(b) Trinitro Phenol
(c) TNT
(d) Nitro Glycerine
Ans: (a)
246. The explosive nitroglycerine is a : [BPSC 2004, IAS (Pre) 2009]
(a) salt
(b) nitro hydrocarbon
(c) complex hydrocarbon
(d) ester
Ans: (d)
247. RDX is:
(a) Recently Developed Explosive
(b) Research Developed Explosive
(c) Really Descent Explosive
(d) Rectified Developed Explosive
Ans: (b)
248. Who was the inventor of dynamite?
(a) Otto Han
(b) Rutherford
(c) Edison
(d) Alferd Nobel
Ans: (d)
249. The main component of dynamite is:
(a) TNT
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