Stoichiometry In a neutral solution OH⁻ ions are absent Both H⁺ and OH⁻ ions are present in very small but equal concentration H⁺ ions are absent None of these OH⁻ ions are absent Both H⁺ and OH⁻ ions are present in very small but equal concentration H⁺ ions are absent None of these ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry 80 kg of Na₂SO₄ (molecular weight = 142) is present in 330 kg of an aqueous solution. The solution is cooled such that. 80 kg of Na₂SO₄ .10H₂O crystals separate out. The weight fraction of Na₂SO₄ in the remaining solution is 0.24 0.18 1 0.24 0.18 1 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Air at a temperature of 20°C and 750 mm Hg pressure has a relative humidity of 80%. What is its percentage humidity?Vapour pressure of water at 20°C is 17.5 mm Hg. 79.62 80.38 80 78.51 79.62 80.38 80 78.51 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry The atomic weight of helium is 4 times that of hydrogen. Its diffusion rate as compared to hydrogen will be __________ times. √2 43832 43834 4 √2 43832 43834 4 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Disappearance of snow in subzero weather exemplifies the process of Melting Vaporisation Evaporation Sublimation Melting Vaporisation Evaporation Sublimation ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant? 273°K 100°C 273°C 200°C 273°K 100°C 273°C 200°C ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS