Chemical Process Cation exchanger is regenerated usually with H₂SO₄ NaOH Alum solution Hydrazine H₂SO₄ NaOH Alum solution Hydrazine ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Concentration of sulphide ores is done usually by Roasting Electro magnetic separation Smelting Froth floatation Roasting Electro magnetic separation Smelting Froth floatation ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Presence of sodium tripolyphosphate (an additive) in synthetic detergent None of these Inhibits its corrosive effects Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions) Does not allow redeposition of dirt on the cleaned surface None of these Inhibits its corrosive effects Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions) Does not allow redeposition of dirt on the cleaned surface ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Hydrogenation of oil takes place in a/an __________ reactor. Plug flow Autothermal None of these Trickle bed Plug flow Autothermal None of these Trickle bed ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C. 15-30 250-300 90-100 15-30 250-300 90-100 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst Gives higher conversion efficiency Has a longer life and is not poisoned by arsenic All of these Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant Gives higher conversion efficiency Has a longer life and is not poisoned by arsenic All of these Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant ANSWER DOWNLOAD EXAMIANS APP
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