Chemical Process The main aim behind cooling the digested chip at the bottom portion of the digestor by injecting cold black liquor is to Remove lignin by way of crystallisation Avoid mechanical weakening of fibre None of these Increase the cellulose content Remove lignin by way of crystallisation Avoid mechanical weakening of fibre None of these Increase the cellulose content ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Liquefaction of gases can not be done by Exchange of heat with colder stream Adiabatic expansion against a piston or in a turbine Merely compressing it beyond critical pressure Adiabatic expansion through a throttle valve (Joule-Thomson expansion) Exchange of heat with colder stream Adiabatic expansion against a piston or in a turbine Merely compressing it beyond critical pressure Adiabatic expansion through a throttle valve (Joule-Thomson expansion) ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Roasting of metallurgical ores is done mainly to Remove CO₂ & H₂O Remove arsenic & sulphur Dehydrate it Sinter the ore Remove CO₂ & H₂O Remove arsenic & sulphur Dehydrate it Sinter the ore ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Sodium chloride content in sea water is about __________ gms/litre. 50 2 25 10 50 2 25 10 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst All of these Gives higher conversion efficiency Has a longer life and is not poisoned by arsenic Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant All of these Gives higher conversion efficiency Has a longer life and is not poisoned by arsenic Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant. High silica Lead Pyrex Soda lime High silica Lead Pyrex Soda lime ANSWER DOWNLOAD EXAMIANS APP
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