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? 5 20 15 10 5 20 15 10 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry If 1.5 moles of oxygen combines with aluminium to form Al2O₃, then the weight of aluminium (atomic weight = 27 ) used in this reaction is __________ gm. 27 5.4 2.7 54 27 5.4 2.7 54 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 1 BTU/ft³ is approximately equal to __________ kcal/m³. 4 252 9 1 4 252 9 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Osmotic pressure of the solution can be increased by Increasing the volume of the vessel containing the solution None of these Diluting the solution Decreasing its temperature Increasing the volume of the vessel containing the solution None of these Diluting the solution Decreasing its temperature ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Elements in a periodic table are arranged in order of their Atomic weight Metallic characteristics Atomic number Mass number Atomic weight Metallic characteristics Atomic number Mass number ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat capacity of most substances is greater for the __________ state. Liquid Gaseous None of these Solid Liquid Gaseous None of these Solid ANSWER DOWNLOAD EXAMIANS APP
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