Hamad Chemical Process 21/06/2021 A. Red B. Yellow C. Violet D. Black Related Mcqs: Soap cannot be used with hard water, because _________________?A. Hard water contains sulphate B. They form insoluble calcium soaps which precipitate C. They attract back the removed dirt D. None of these... What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell ?A. Cl2 & Na B. Cl2 & H2 C. O2 & H2 D. Cl2, H2 & NaOH solution... The most commonly used substance to speed up the sedimentation of sewage is___________________?A. Lime B. Sulphuric acid C. Chlorine D. Sodium bisulphite... Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at _____________ °C ?A. 15-30 B. 90-100 C. 250-300 D. < 0... Gun powder, which is an explosive comprises of charcoal, sulphur and____________________?A. Glycerine B. Salt petre C. Nitro glycerine D. Dynamite...
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