Stoichiometry The crystallisation of a solute from a solution may be done by Changing the nature of the system by the addition of a more soluble material Change of temperature thereby causing supersaturation Removal of pure solvent by evaporation All of these Changing the nature of the system by the addition of a more soluble material Change of temperature thereby causing supersaturation Removal of pure solvent by evaporation All of these ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The depression in freezing point of a solution is Both A & B Neither A nor B Inversely proportional to the mass of solvent Directly proportional to the mole of solute Both A & B Neither A nor B Inversely proportional to the mass of solvent Directly proportional to the mole of solute ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Density of carbon dioxide is __________ kg/Nm³. None of these 44/22400 22.4/44 44/22.4 None of these 44/22400 22.4/44 44/22.4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________ 1019 1020 1026 1023 1019 1020 1026 1023 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The heat of vaporisation __________ with increase in pressure. Decreases Increases Both B and C Becomes zero at critical pressure Decreases Increases Both B and C Becomes zero at critical pressure ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry One mole of methane undergoes complete combustion in a stoichiometric amount of air. The reaction proceeds as CH₄ + 2O₂ → CO₂ + 2H₂O. Both the reactants and products are in gas phase. ΔH°298 = - 730 kJ/mole of methane. Mole fraction of water vapour in the product gases is about 0.19 0.40 0.33 0.67 0.19 0.40 0.33 0.67 ANSWER DOWNLOAD EXAMIANS APP
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