81. Synthesis gas is a mixture of
82. Systemic insecticides
83. __________ is not a constituent of gun powder.
84. Air used in aerobic fermentation must be sterilized, otherwise the
85. Raw materials used for producing __________ cement does not contain iron oxide.
86. Alum [Al2(SO4)3] is used as a coagulant in water treatment to remove
87. Glauber's salt is chemically represented by
88. Vegetable oils contain large quantity of glycerides of unsaturated acids. When the vegetable oils contain high amount of saturated fatty acids, it is termed as __________ oil.
89. An alkali metal salt of palmitic acid is known as
90. Which form of sulphur is the most stable at room temperature?
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