GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 116

GENERAL SCIENCE CHEMISTRY ONE LINERS FOR TNPSC UPSC SSC SET 116

1151). Lead is considered as

A). Air pollutant

B). Water pollutant

C). Soil pollutant

D). All of these

Answer: All of these

   

1152). Which of the following gases is absorbed mostly by activated charcoal?

A). CO2

B). N2

C). CH4

D). Ar

Answer: CO2

   

1153). What is the chemical difference between celluloid and cellophane?

A). These two material have the same chemical composition

B). Cellophane is much more inflammable than celluloid

C). Celluloid contains Nitrogen while cellophane does not

D). Photographic images stick better to celluloid.

Answer: Celluloid contains Nitrogen while cellophane does not

   

1154). The Avogadro number is

A). 6.00×10^24

B). 6.023×10^23

C). 6.054×10^22

D). 6.504×10^22

Answer: 6.023×10^23

   

1155). The oxidation number of Fe in K3[Fe(CN)6]

A). 2

B). 3

C). 1

D). 4

Answer: 3

1156). Which of the following is Natural Rubber?

A). Polyester

B). Polyamide

C). Polyisoprene

D). Polysaccharide

Answer: Polyisoprene

   

1157). The end product of fermentation of molasses of sugarcane by yeast is

A). Pyruvate

B). Phenol

C). Lactic acid

D). Ethyl alcohol

Answer: Ethyl alcohol

   

1158). Which of the following is correctly matched?

A). TNT-Fertilizer

B). Gasoline-Petrochemical

C). Potassium Sulphate-Explosive

D). Cement-Molecular crystal

Answer: Gasoline-Petrochemical

   

1159). An example of addition co-polymer is

A). Buna - S

B). PVC

C). Neoprene

D). Glyptal

Answer: Buna - S

   

1160). The reaction that takes place in a Daniel cell is

A). Cu+Hg-->Cu.Hg

B). Zn^0+Cu^2+ --> Zn^2+ +CU^0

C). Cu^2+ + 2Ag-->Cu^0 + 2Ag^+

D). 3fe^2+Cr^6+ --< 3Fe^3+ + Cr^3+

Answer: Zn^0+Cu^2+ --> Zn^2+ + CU^0