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 DDT should not be allowed to come in contact with iron (during its manufacture) to Achieve non-hygroscopic property Prevent sulphonation of the monochlorobenzene by the acid catalyst None of these Avoid its decomposition Achieve non-hygroscopic property Prevent sulphonation of the monochlorobenzene by the acid catalyst None of these Avoid its decomposition ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Graphite is a/an Allotrope of carbon Electrical insulator Both B and C Moderator used in nuclear reactor Allotrope of carbon Electrical insulator Both B and C Moderator used in nuclear reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Process A substance produced by a living organism and capable of anti-microbial activity is called a/an None of these Antibiotic Disinfectant Antiseptic None of these Antibiotic Disinfectant Antiseptic ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Gun powder uses Potassium nitrate Charcoal Sulphur All of these Potassium nitrate Charcoal Sulphur All of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Process Dehydrogenation of isopropanol produces Acetone Trichloroethylene Propyl alcohol Formaldehyde Acetone Trichloroethylene Propyl alcohol Formaldehyde ANSWER DOWNLOAD EXAMIANS APP
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