Chemical Process Use of chlorine in the treatment of sewage Causes bulking of activated sludge Aids in flocculation Helps in grease separation Increases the biological oxygen demand(BOD) Causes bulking of activated sludge Aids in flocculation Helps in grease separation Increases the biological oxygen demand(BOD) ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which is the most efficient absorbant for SO₃ out of the following? 65% oleum 78%H₂SO₄ 98%H₂SO₄ 20% oleum 65% oleum 78%H₂SO₄ 98%H₂SO₄ 20% oleum ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C. 25 60-70 250-300 150-200 25 60-70 250-300 150-200 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Concentration of sulphide ores is done usually by Electro magnetic separation Froth floatation Smelting Roasting Electro magnetic separation Froth floatation Smelting Roasting ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not required in the manufacture of soda ash by Solvay process? Nitric acid Ammonia Limestone None of these Nitric acid Ammonia Limestone None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Phthalic anhydride is made by the Oxidation of naphthalene None of these Dehydrogenation of ethyl benzene Oxidation of benzene Oxidation of naphthalene None of these Dehydrogenation of ethyl benzene Oxidation of benzene ANSWER DOWNLOAD EXAMIANS APP
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