General Science - 5

61. Chlorine gas can be prepared by

(a) Bosch Process (b) Haber Process

(c) Ostwald Process (d) Deacon’s Process

Answer:( d)

62. The isotope of hydrogen that does not contain any neutrons in its nucleus is

(a)Protium (b) Deuterium

(c) Tritium (d) Both (b) & (c)

Answer:(a )

63. The nonmetal which exists as liquid in room temperature is

(a) Iodine (b) Bromine

(c) Flourine (d) Mercury

Answer:( b)

64. Lord Rayleigh and Sir William Ramsay were awarded Nobel Prizes in 1904 for their discovery of

(a) Radioactivity (b) Super conductivity

(c) Noble gases (d) Transuranic elements

Answer:( c)

65. Baeyers’s reagent is

(a) Dilute alkaline solution of KMnO₄

(b) Alkaline Solution of K₂(Hgl₄)

 (c) Copper Sulphate Solution

(d) Solution of Mercuric and Mercurous Nitrate

Answer:( a)

66. Brass is an alloy of

(a) Aluminium & Zinc (b) Copper & Aluminium

(c) Nickel & Zinc (d) Copper & Zinc

Answer:(d )

67. Dry ice is

 (a) Solid Sulphur Dioxide (b) Solid Ammonia

(c) Solid Carbon Dioxide (d) Solid Hydrogen Sulphide

Answer:( c)

68. Silver Nitrate is commonly known as

(a) Lunar Caustic (b) Caustic Soda

 (c) Blue Vitriol (d) White Vitriol

Answer:(a )

69. An extremely toxic and deadly compound responsible for the Bhopal gas tragedy is

(a) Benzene Hexachloride  (b) DDT

(c) Methyl isocyanate (d) Methyl alcohol

Answer:(c )

70. Nitrogen present in an organic compound can be estimated by

(a) Dumas Method (b) Kjeldahl’s Method

(c) Carvis Method (d) both (a) & (b)

Answer:(d )

71. Molecular formula of benzene is

(a) C₆H₁₄  (b) C₆H₁₂

(c) C₆H₁₀  (d) C₆H₆

Answer:( d)

72. Different components of Crude oil are separated in petroleum industry by

(a)Chromatography (b) Fractional distillation

(c) Crystallization (d) Differential extraction

Answer:( b)

73. Thermodynamically stable allotropic form of carbon is

(a) Diamond (b) Graphite

(c) Fullerene (d) Coke

Answer:(b )

74. Marsh gas is

(a) Methane (b) Ethane

(c) Propane  (d) Butane

Answer:( a)

75. The substance added to LPG to detect leakage is

(a)Ethanol (b) Ethyl Mercaptan

(c) Ethyl amine (d) Chloroethane

Answer:(b )
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