Science-General Knowledge Questions, Quiz

Q166. Into which colour will the yellow silver bromide turn when exposed to sunlight
(a) White
(b) Grey
(c) Blue
(d) Red

Q167. Into which colour will the yellow silver bromide turn when exposed to sunlight
(a) Due to presence of iron in apple
(b) Due to settling of micro dust present in air
(c) As the original inner colour is brown
(d) Due to oxidation of an enzyme present in apple

Q168. Which of the following enzymes found in saliva is responsible for digestion
(a) Maltase
(b) Pepsin
(c) Amylase
(d) Trypsin

Q169. Formation of Carbon dioxide gas from Carbon and Oxygen is a a/an
(a) Exothermic reaction
(b) Displacement reaction
(c) Endothermic reaction
(d) Biochemical reaction

Q170. The bright colour of fire crackers is due to
(a) Reduction of Magnesium
(b) Redox reaction
(c) Oxidation of Magnesium
(d) Explosion of metal

Q171. Tobacco plant contains the following alkaloid
(a) Resin
(b) Morphine
(c) Risarpin
(d) Nicotine

Q172. Which vitamin contains Cobalt
(a) Vitamin A
(b) Vitamin B
(c) Vitamin C
(d) Vitamin B12

Q173. Which of the coolant is used in Fast Breeder Reactors
(a) Liquid Helium
(b) Liquid Sodium
(c) Heavy Water
(d) Light Water

Q174. Who was the first scientist to discover that Malaria is transmitted through Mosquitoes
(a) Louis Pasteur
(b) Edward Jenner
(c) Ronald Ross
(d) Samuel Hahnemann

Q175. Who discovered that Plants had life
(a) Satyendra Nath Bose
(b) Jagadish Chandra Bose
(c) Jagadish Chandra Ghosh
(d) Satyendra Nath Ghosh

Q176. What is the name of the web based Geo Portal developed by ISRO and made available for public use
(a) Gagan
(b) Akash
(c) Prithvi
(d) Bhuvan

Q177. Which one is the commercial and marketing arm of ISRO
(a) Devas Corporation Ltd
(b) Antariksh Corporation Ltd
(c) Antrix Corporation Ltd
(d) Space Application Center

Q178. Which part of the Cinchona plant is used for treatment of Malaria
(a) Leaves
(b) Roots
(c) Bark
(d) Seed

Q179. Who is known as the father of nano-materials
(a) Richard Feynman
(b) Niels Bohr
(c) Max Planck
(d) Ernest Rutherford

Q180. Detoxification is
(a) Treatment to drugs
(b) Treatment to Alcoholism
(c) Treatment to Tobocaism
(d) Treatment to AIDS

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