Chemical Process Which of the following, when pyrolysed, produces perchloro-ethylene? Ethylene dichloride Chlorinated paraffin Chlorobenzene Carbon tetrachloride Ethylene dichloride Chlorinated paraffin Chlorobenzene Carbon tetrachloride ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Chloramines are used in water treatment for Removing turbidity Control of bacteria Disinfection and control of taste & odour Corrosion control Removing turbidity Control of bacteria Disinfection and control of taste & odour Corrosion control 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. 250-300 15-30 90-100 250-300 15-30 90-100 ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Presence of carbonaceous matter in the sewage All of these Reduces sulphate ions to sulphides causing obnoxious smell Increases the quantity of chlorine used for its purification Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures All of these Reduces sulphate ions to sulphides causing obnoxious smell Increases the quantity of chlorine used for its purification Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic creatures ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Which of the following is not a pyrite ore? Siderite Celestite Galena Gypsum Siderite Celestite Galena Gypsum ANSWER DOWNLOAD EXAMIANS APP
Chemical Process H₂S is scrubbed from refinery gases by absorption using Ethanol amine Tri-butyl phosphate Dilute H₂SO₄ Chilled water Ethanol amine Tri-butyl phosphate Dilute H₂SO₄ Chilled water ANSWER DOWNLOAD EXAMIANS APP
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