Everyday Science MCQs Part 5

everyday science mcqs previous test
41. What is the main component of bio-gas and natural gas.?
A. Methane
B. Ethane
C. Butane
D. Propane

42. Which of the following bases is involved in the making of soap.?
A. Baking soda
B. Ammonia
C. Washing soda
D. Caustic soda

43. Which on of the following has the same atomic number and atomic weight.?
A. Helium
B. Oxygen
C. Nitrogen
D. Hydrogen

44. The purest from of iron is.?
A. Wrought iron
B. Pig iron
C. Cast iron
D. Stainless steel

45. The most malleable metal is .?
A. Platinum
B. Gold
C. Silver
D. Iron

46. The major constituent of air is.?
A. Carbon dioxide
B. Oxygen
C. Hydrogen
D. Nitrogen

47. The first metal to be used by man was
A. Aluminum
B. Silver
C. Iron
D. Copper

48. What is the only element that normally has no neutrons.?
A. Oxygen
B. Krypton
C. Neon
D. Hydrogen

49. The development of the ultra microscope makes use the of the.?
A. Edison effects
B. Tyndall effect
C. Brownian motion
D. None of above

50. Which of the following elements is found in all organic compounds.?
A. Calcium
B. Nitrogen
C. Oxygen
D. Carbon

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