Chemical Process The most stable allotropic form of phosphorous is the __________ phosphorous. Yellow Red Black White Yellow Red Black White ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Exothermic condensation reaction of monochlorobenzene with chloral in presence of 20% oleum as catalyst produces DDT. The reaction temperature is maintained at __________ °C. 15-30 90-100 250-300 15-30 90-100 250-300 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Cooking liquor in case of sulphite process is Sodium sulphite and sodium bisulphite None of these Magnesium sulphite and free SO₂ in acid medium Magnesium sulphate and magnessium bicarbonate Sodium sulphite and sodium bisulphite None of these Magnesium sulphite and free SO₂ in acid medium Magnesium sulphate and magnessium bicarbonate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process __________ is not a constituent of gun powder. Sulphur Carbon Charcoal Potassium nitrate Sulphur Carbon Charcoal Potassium nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not produced on commercial scale from sea water? Bromine Sodium sulphate Magnesium compounds Potassium compounds Bromine Sodium sulphate Magnesium compounds Potassium compounds ANSWER DOWNLOAD EXAMIANS APP
Chemical Process How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln? 1500°C 1000°C 750°C 500°C 1500°C 1000°C 750°C 500°C ANSWER DOWNLOAD EXAMIANS APP
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