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Online General Science Quiz Set No - 48

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.

471) Which one of the following is left when an hydrogen atom loses its electron?
A) An alpha particle
B) A neutron
C) A proton
D) A beta particle

472) Which one of the following is not a digestive enzyme?
A) Pepsin
B) Renin
C) Insulin
D) Amylopsin

473) Which one of the following is the softest?
A) Lithium
B) Sodium
C) Alimunium
D) Iron

474) Which one of the following is used as a moderator in a nuclear reactor?
A) Radium
B) Thorium
C) Heavy water
D) Ordinary water

475) Which one of the following is used as an explosive?
A) Nitroglycerine
B) Graphite
C) Mercuric oxide
D) Phosphorus trichloride

476) Which one of the following is used in the preparation of antiseptic solution?
A) Iodine
B) Potassium Chloride
C) Potassium nitrate
D) Iodine Chloride

477) Which one of the following metals is used to galvanise iron?
A) Copper
B) Lead
C) Zinc
D) Mercury

478) Which one of the following reactions is the main cause of the energy radiation from the Sun?
A) Fusion reaction
B) Fission reaction
C) Chemical reaction
D) Diffusion reaction

479) Which pigment gives plants and leaves their green colour ?
A) Carotenoid
B) Anthocyanin
C) Chlorophyll
D) None of these

480) Which scale is used to measure hardness of minerals?
A) Kelvin
B) Mohs
C) Richter
D) Mercalli intensity scale