Chemical Process Temporary hardness of water can be removed by Boiling Addition of alum (a coagulant) Addition of lime Filtration (through gravity sand filter) Boiling Addition of alum (a coagulant) Addition of lime Filtration (through gravity sand filter) ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Starting raw material for the manufacture of alum is Alumina Ammonium bicarbonate Gypsum Bauxite Alumina Ammonium bicarbonate Gypsum Bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance. Pyrex Potash Flint Soda Pyrex Potash Flint Soda ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pure rectified spirit contains about __________ percent alcohol. 95 45 70 99.5 95 45 70 99.5 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Coke oven gas consists mainly of H₂, & CH₄ CH₄, & CO H₂, & CO CO, & CO₂ H₂, & CH₄ CH₄, & CO H₂, & CO CO, & CO₂ ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Pick out the endothermic reaction out of the following. CO + 3H₂ = CH₄ + H₂O C+1/2O₂ = CO CaCO₃ = CaO + CO₂ CO +1/2O₂ = CO₂ CO + 3H₂ = CH₄ + H₂O C+1/2O₂ = CO CaCO₃ = CaO + CO₂ CO +1/2O₂ = CO₂ ANSWER DOWNLOAD EXAMIANS APP
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