Chemical Process Removal of dirt/soil by soaps or detergent does not involve the __________ of soil. Precipitation Dispersion Emulsification Wetting Precipitation Dispersion Emulsification Wetting ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The major constituent of black liquor generated during paper manufacture is sodium Hydroxide Carbonate Sulphate Bi-carbonate Hydroxide Carbonate Sulphate Bi-carbonate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Catalytic oxidation-dehydrogenation of methyl alcohol produces Acetone Formaldehyde Maleic anhydride Phenol Acetone Formaldehyde Maleic anhydride Phenol ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Temporary hardness of water can be removed by Boiling Addition of lime Filtration (through gravity sand filter) Addition of alum (a coagulant) Boiling Addition of lime Filtration (through gravity sand filter) Addition of alum (a coagulant) ANSWER DOWNLOAD EXAMIANS APP
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 In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst All of these Gives higher conversion efficiency Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant Has a longer life and is not poisoned by arsenic All of these Gives higher conversion efficiency Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant Has a longer life and is not poisoned by arsenic ANSWER DOWNLOAD EXAMIANS APP
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