Stoichiometry 1 kg of calcium carbide (CaC₂) produces about 0.41 kg of acetylene gas on treatment with water. How many hours of service can be derived from 1 kg of calcium carbide in an acetylene lamp burning 35 litres of gas at NTP per hour? 15 5 10 20 15 5 10 20 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following is an exothermic reaction? None of these Decomposition of water Dehydrogenation of ethane to ethylene Conversion of graphite to diamond None of these Decomposition of water Dehydrogenation of ethane to ethylene Conversion of graphite to diamond ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The reverse process of fractional crystallisation is called Leaching Absorption Stripping Differential distillation Leaching Absorption Stripping Differential distillation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 'Cox' chart which is useful in the design of a distillation column (particularly suitable for petroleum hydrocarbons) is a plot of the Vapor pressure vs. temperature Vapor pressure vs. log (temperature) Log (temperature) vs. log (vapor pressure) Temperature vs. log (vapor pressure) Vapor pressure vs. temperature Vapor pressure vs. log (temperature) Log (temperature) vs. log (vapor pressure) Temperature vs. log (vapor pressure) ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Weight of 56 litres of ammonia at N.T.P. is __________ gm. 56 42.5 2.5 2800 56 42.5 2.5 2800 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature. Carbonate (monohydrate) Thiosulphate Chloride Bisulphite Carbonate (monohydrate) Thiosulphate Chloride Bisulphite ANSWER DOWNLOAD EXAMIANS APP
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