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Online General Science Quiz Set No - 21

General Science questions have been taken from previous years question papers of different competitive examinations such SSC CGL, SSC CHSL, CDS, NDA, Bank, State PSC, Railways, MAT, CAT, etc.

201) Richter Scale is used for measuring
A) Velocity of wind
B) Density of liquid
C) Magnitude of earthquake
D) Humidity of air

202) Royal Bengal', 'Sumatran', 'Malayan' and 'Siberian' are the species of which member of cat family?
A) Leopard
B) Lion
C) Tiger
D) Jaguar

203) Rubber is coagulated from latex by adding:
A) Hydrochloric acid
B) Acetic acid
C) Sulphuric acid
D) Carbonic acid

204) Rust is:
A) A mixture of Fe2O3 and Fe(OH)2
B) A mixture of FeO and Fe(OH)2
C) FeO only
D) A mixture of Fe2O3, 3H2O and FeO

205) Saponification involves the hydrolysis of fats and oils by:
A) Water
B) Washing soda
C) Stearic acid
D) Caustic acid

206) Short sightedness is due to?
A) Weaker muscles
B) Weakening of the retina
C) Shifting of the Iris
D) Elongation of eye balls

207) Sir C V Raman was awarded Nobel Prize for his work on
A) Sonometer
B) Light Scattering
C) Radioactivity
D) Cyrogenics

208) Soap helps in better cleaning of clothes because
A) Soap acts like catalyst
B) It reduces the surface tension of solution
C) It gives strength to solution
D) It absorbs the dirt

209) Soap is a mixture of sodium or potassium salts of:
A) Monocarboxylic acid
B) Glycerols
C) Dicarboxylic acid
D) Tricarboxylic acid

210) Soda water contains:
A) Nitrous acid
B) Carbonic acid
C) Carbon dioxide
D) Sulphuric acid