General Science Question Answer
Q31. The smallest particle which participates in a chemical reaction is
(a) Proton
(b) Neutron
(c) Molecule
(d) Atom
Answer: (d) Atom
Q32. Who had invented the pH scale
(a) S.P.L Sorenson
(b) Benjamin Franklin
(c) Henry Moseley
(d) Wilhelm Rontgen
Answer: (a) S.P.L Sorenson
Q33. Which of the following chemical is added in washing powder for keeping it dry
(a) Sodium silicate
(b) Inorganic phosphate
(c) Carboxy - methyl cellulose
(d) Sodium perborate
Answer: (a) Sodium silicate
Q34. Mirage is an example of
(a) Refraction
(b) Total internal reflection
(c) Deflection
(d) Diffraction
Answer: (b) Total internal reflection
Q35. What does "N" stand for in the full form of CNG gas
(a) Non-combustible
(b) Nitogenous
(c) Non-compressible
(d) Natural
Answer: (d) Natural
Q36. Mole is the SI unit to measure which physical quantity
(a) Intensiy of light
(b) Solid angle
(c) Conductivity
(d) Amount of substance
Answer: (d) Amount of substance
Q37. The group of organisms which converts light into food is called
(a) autotrophs
(b) heterotrophs
(c) decomposers
(d) omnivores
Answer: (a) autotrophs
Q38. Vermicomposting is done by
(a) fungus
(b) bacteria
(c) worms
(d) animals
Answer: (c) worms
Q39. Who is the developer of ‘Hike’ messenger
(a) Kavin Bharti Mittal
(b) Sundar Pichai
(c) Chris Hughes
(d) Dustin Moskivitz
Answer: (a) Kavin Bharti Mittal
Q40. Oral contraceptive pill contains
(a) FSH and LH
(b) Progesterone and Estrogen
(c) Progesterone
(d) Estrogen
Answer: (b) Progesterone and Estrogen
Q41. Hardness of bones is due to the presence of
(a) Calcium carbonates
(b) Calcium sulphates
(c) Calcium phosphates
(d) Calcium oxalate
Answer: (c) Calcium phosphates
Q42. VNTR is employed in
(a) DNA fingerprinting
(b) Cloning
(c) Probe
(d) Splicing
Answer: (a) DNA fingerprinting
Q43. When was Darwin's "Origin of Species" published
(a) July 1858
(b) January 1859
(c) August 1859
(d) November 1859
Answer: (d) November 1859
Q44. Name the group of animals which do not live in salt water
(a) Fishes
(b) Mammals
(c) Amphibians
(d) Reptiles
Answer: (c) Amphibians
Q45. Axis is absent in
(a) Frog
(b) Snake
(c) Lizard
(d) Rat
Answer: (a) Frog
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