Chemical Process Manufacture of phthalic anhydride uses __________ as a catalyst. Cr V₂O₅ Al₂O₃ Ni Cr V₂O₅ Al₂O₃ Ni ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Common salt is generally not produced commonly by __________ method from brine. Solar evaporation Electrolytic Freeze drying Vacuum evaporation Solar evaporation Electrolytic Freeze drying Vacuum evaporation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Wet chlorine gas produced during electrolysis of brine is dehydrated by Passing it through a bed of silica gel None of these Passing it through a bed of diatomaceous earth Spraying 66° Be H₂SO₄ counter current to the flow of the gas Passing it through a bed of silica gel None of these Passing it through a bed of diatomaceous earth Spraying 66° Be H₂SO₄ counter current to the flow of the gas ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which is the most efficient absorbant for SO₃ out of the following? 78%H₂SO₄ 65% oleum 98%H₂SO₄ 20% oleum 78%H₂SO₄ 65% oleum 98%H₂SO₄ 20% oleum ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Fumigant insecticides Emit poisonous vapour Are absorbed throughout the plant None of these Kill insects, when they eat it Emit poisonous vapour Are absorbed throughout the plant None of these Kill insects, when they eat it ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Nitroglycerene absorbed in wood flour, sodium nitrate or ammonium nitrate is commercially used as a controlled explosive called dynamite. The raw material used for its manufacture are glycerene, nitric acid and Sulphuric acid Hydrochloric acid Hydroflouric acid Phosphoric acid Sulphuric acid Hydrochloric acid Hydroflouric acid Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
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