Chemical Process Which of the following additives/water proofing agents is added to lower the hydrophilic (moisture loving) characteristic of cement? Xanthates Stearic acid Formic acid Calcium & aluminium stearate Xanthates Stearic acid Formic acid Calcium & aluminium stearate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process In the Lurgi coal gasifier Large quantity of coal can be processed Coking coals cannot be used Low carbon conversion efficiency is achieved Entrainment of solids is higher Large quantity of coal can be processed Coking coals cannot be used Low carbon conversion efficiency is achieved Entrainment of solids is higher ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Sand and __________ is fused at 1300°C, to produce sodium silicate. Coke Soda ash Sodium sulphate Limestone Coke Soda ash Sodium sulphate Limestone ANSWER DOWNLOAD EXAMIANS APP
Chemical Process One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to Remove the coloring matter from the syrup Improve the rate of crystallisation of sugar Reduce the viscosity of the syrup Adjust the pH of the syrup Remove the coloring matter from the syrup Improve the rate of crystallisation of sugar Reduce the viscosity of the syrup Adjust the pH of the syrup ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Transparent soaps (e.g. Pears) are None of these Metallic soaps with frothing agent and free stearic acid to achieve transparency Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency Metallic soaps with frothing agent from which glycerine has not been recovered None of these Metallic soaps with frothing agent and free stearic acid to achieve transparency Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency Metallic soaps with frothing agent from which glycerine has not been recovered ANSWER DOWNLOAD EXAMIANS APP
Chemical Process In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst 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 Gives higher conversion efficiency All of these 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 Gives higher conversion efficiency All of these ANSWER DOWNLOAD EXAMIANS APP
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