Science-General Knowledge Questions, Quiz

Q151. Which of the following can fix Nitrogen in soil
(a) Pea
(b) Wheat
(c) Rice
(d) Maize

Q152. Which of the following materials has the highest melting point
(a) Bauxite
(b) Glass
(c) Tungsten
(d) Tantalum Carbide

Q153. The temperature of ice will ______ when it is melting
(a) decrease
(b) increase
(c) remain constant
(d) fluctuate

Q154. Which of the following would most likely have near zero pH value
(a) Milk
(b) Pure water
(c) Saline water
(d) Acid used in Batteries

Q155. Which one is not a primary colour
(a) Red
(b) Green
(c) Blue
(d) Yellow

Q156. Which of the following chemicals is normally used as "anti freeze" in cars
(a) Hexane
(b) Ethylene Glycol
(c) Ethyl Alcohol
(d) Benzene

Q157. Which of the following is a key indicator in measurement of organic pollution in rivers and lakes ?
(a) Venus Necklace
(b) Biochemical Oxygen Demand (BOD)
(c) Total Dissolved Solids
(d) pH

Q158. Sweating is an
(a) Energy neutral process
(b) Exothermic process
(c) Endothermic process
(d) None of the above

Q159. Which type of chemical process is tarnishing of silver ?
(a) Neutralization
(b) Cleaning
(c) Oxidation
(d) Corrosion

Q160. To store potato chips for a longer period, the sealed packet of chips is normally filled with which gas ?
(a) Oxygen
(b) Helium
(c) Nitrogen
(d) Carbon dioxide

Q161. Which of the following assist the eye lens to adjust its focus for viewing bodies at different distances ?
(a) Pupil
(b) Ciliary muscles
(c) Rods
(d) Cones

Q162. Which of the following materials is normally used in a breath analyzer test to ascertain whether a person is drunk or not ?
(a) Potassium dichromate crystals
(b) Potassium permanganate powder
(c) Silica gel
(d) Baking soda

Q163. Scorpion venom contains toxins which are
(a) Proteins
(b) Vitamins
(c) Cyanides
(d) Alkalis

Q164. Which of the following is used in glass industry
(a) Sodium Chloride
(b) Sodium Carbonate
(c) Sodium Bicarbonate
(d) Sodium Hydroxide

Q165. Why does the outside of a glass filled with cold water become wet
(a) Due to condensation of water vapour in the atmosphere
(b) Due to diffusion of water through glass
(c) Due to propagation of water on the surface of walls of glass
(d) None of the above

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