Fuels and Combustion Naphthalene is used for making Unsaturated polyesters Insecticides (e.g. moth balls) Drug intermediates e.g. β-naphthol All of these Unsaturated polyesters Insecticides (e.g. moth balls) Drug intermediates e.g. β-naphthol All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The temperature at which plastic layer formation takes place during carbonisation of coal varies from __________ °C. 350 to 450 550 to 650 100 to 150 700 to 850 350 to 450 550 to 650 100 to 150 700 to 850 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The heat of combustion of a fuel Can't be known without calculating it Is equal to the heat of formation Is always negative Is always positive Can't be known without calculating it Is equal to the heat of formation Is always negative Is always positive ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion 'Wobbe index' is a characteristic of Fat coals Liquid fuels Solid fuels Gaseous fuels Fat coals Liquid fuels Solid fuels Gaseous fuels ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good coking coal should have high __________ content. Ash Moisture None of these Sulphur & phosphorus Ash Moisture None of these Sulphur & phosphorus ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In Orsat's apparatus, ammoniacal cuprous chloride is used for selectivity absorbing CO H₂O CO₂ O₂ CO H₂O CO₂ O₂ ANSWER DOWNLOAD EXAMIANS APP
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