Chemical Process DDT should not be allowed to come in contact with iron (during its manufacture) to Avoid its decomposition Prevent sulphonation of the monochlorobenzene by the acid catalyst None of these Achieve non-hygroscopic property Avoid its decomposition Prevent sulphonation of the monochlorobenzene by the acid catalyst None of these Achieve non-hygroscopic property ANSWER DOWNLOAD EXAMIANS APP
Chemical Process High temperature carbonisation of coal takes place at __________ °C. < 500 700 1100 2000 < 500 700 1100 2000 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Shrinkage volume in cement setting does not depend upon the Ambient temperature fluctuation Drying period Sand to cement ratio Water to cement ratio Ambient temperature fluctuation Drying period Sand to cement ratio Water to cement ratio ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Most easily and cheaply available fibrous raw material for paper manufacture available in India is bamboo. The yield of pulp produced from fibrous raw material by mechanical process is about __________ percent. < 10 75 > 30 50 < 10 75 > 30 50 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Wax is a Mixture of esters of polyhydric alcohols excepting glycerine Liquid at room temperature Mixture of glycerides Mixture of glycerides of fatty acids Mixture of esters of polyhydric alcohols excepting glycerine Liquid at room temperature Mixture of glycerides Mixture of glycerides of fatty acids ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not produced commercially from sea water? Bromine Iodine Common salt Magnesium & potassium compounds Bromine Iodine Common salt Magnesium & potassium compounds ANSWER DOWNLOAD EXAMIANS APP
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