Chemical Process Raw materials required for the manufacture of __________ is acetylene and hydrochloric acid. Vinyl chloride Maleic anhydride Phthalic anhydride Dacron Vinyl chloride Maleic anhydride Phthalic anhydride Dacron ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Hydrogenation of oil does not Raise its melting point Improve its resistance to oxidation Remove double bonds None of these Raise its melting point Improve its resistance to oxidation Remove double bonds None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process High temperature carbonisation of coal takes place at __________ °C. 700 < 500 1100 2000 700 < 500 1100 2000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Use of hydrated lime in water treatment All of these Before filtration, reduces the bacterial load on filters After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ Is to adjust the pH value All of these Before filtration, reduces the bacterial load on filters After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂ Is to adjust the pH value ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ are used as corrosion inhibitor for iron & steel in aqueous solutions. Chromates Bi-carbonates Sulphates Phosphates Chromates Bi-carbonates Sulphates Phosphates ANSWER DOWNLOAD EXAMIANS APP
Chemical Process The main product of high temperature carbonisation of coal is Tar Ammonia Coke Phenol Tar Ammonia Coke Phenol ANSWER DOWNLOAD EXAMIANS APP
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