71. Maximum sulphur percentage in low sulphur heavy stock (LSHS) furnace oil is about
72. Which one is used to determine the colour of petroleum products?
73. Cracking is
74. During electrical desalting of crude oil, the electrical conductivity of a mixture of crude oil and water (which ranges between 3 to 8% water) __________ with increase in the amount of water.
75. Aromatics are desired constituents of
76. Catalytic cracking compared to thermal cracking of residue of vacuum distillation of crude oil
77. The main use of heavy gas oil produced by the vacuum distillation unit is as a
78. __________ determination is not a very significant and important test for gasoline.
79. Catalyst used in the catalytic cracking is
80. Naphthenic acid is a/an __________ compound.
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