Stoichiometry In a neutral solution Both H⁺ and OH⁻ ions are present in very small but equal concentration None of these H⁺ ions are absent OH⁻ ions are absent Both H⁺ and OH⁻ ions are present in very small but equal concentration None of these H⁺ ions are absent OH⁻ ions are absent ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Which of the following holds good for a solution obeying Raoult's law (i.e., an ideal solution) (where, ΔH = heat of mixing, and ΔV = volume change on mixing ) ? Both B and C ΔH = 1 (+ ve)and Δ V = -ve ΔH = 0 ΔV = 0 Both B and C ΔH = 1 (+ ve)and Δ V = -ve ΔH = 0 ΔV = 0 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. 4 43834 43832 √2 4 43834 43832 √2 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Concentration of a solution expressed in terms of __________ is independent of temperature. Normality Molarity None of these Molality Normality Molarity None of these Molality 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. 78.51 80 79.62 80.38 78.51 80 79.62 80.38 ANSWER DOWNLOAD EXAMIANS APP
Stoichiometry Gases diffuse faster compared to liquids because of the reason that the liquid molecules Are heavier Are held together by stronger inter-molecular forces Move faster Have no definite shape Are heavier Are held together by stronger inter-molecular forces Move faster Have no definite shape ANSWER DOWNLOAD EXAMIANS APP
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