Chemical Process Oxidation of ortho-xylene in presence of __________ catalyst is done to produce phthalic anhydride on commercial scale. Nickel Iron Alumina Vanadium Nickel Iron Alumina Vanadium ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The amount of benzene present in pure benzol is about __________ percent. 70 50 30 90 70 50 30 90 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Low temperature carbonisation of coal takes place at __________ °C. 700 300 1100 900 700 300 1100 900 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is a detergent? Alkyl benzene sulphonate Benzene hexachloride Cellulose nitrate Polytetraflouroethylene Alkyl benzene sulphonate Benzene hexachloride Cellulose nitrate Polytetraflouroethylene ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The most reactive allotropic form of phosphorus is __________ phosphorus. Red Violet Black Yellow Red Violet Black Yellow ANSWER DOWNLOAD EXAMIANS APP
Chemical Process In multistage equilibrium conversion of SO₂ to SO₃ (2SO₂ + O₂ ⇋ 2SO₃), the reverse reaction becomes appreciable at a temperature of 550° C. The percentage equilibrium conversion of SO₂ to SO₃ can be increased by Maintaining low temperature & pressure in the converter Removing some quantity of SO₃ during intermediate stage Increasing the oxygen concentration Putting more quantity of V₂O₅ catalyst in the converter Maintaining low temperature & pressure in the converter Removing some quantity of SO₃ during intermediate stage Increasing the oxygen concentration Putting more quantity of V₂O₅ catalyst in the converter ANSWER DOWNLOAD EXAMIANS APP
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