Atoms of the same element, but of different masses are called Isotopes None of these Isobars Isotones TRUE ANSWER : ? YOUR ANSWER : ?
Kinetic theory of gases stipulates that, the Absolute temperature is a measure of the kinetic energy of molecules Energy is lost during molecular collisions None of these Molecules possess appreciable volume TRUE ANSWER : ? YOUR ANSWER : ?
Boiling point of a non-homogeneous mixture of immiscible liquids is __________ that of any one of its separate components. Either A or B; depends on the liquids Lower than Equal to Higher than TRUE ANSWER : ? YOUR ANSWER : ?
Internal energy of a substance comprises of the __________ energy. Rotational All of these Vibrational Translational TRUE ANSWER : ? YOUR ANSWER : ?
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 ) ? ΔH = 1 (+ ve)and Δ V = -ve ΔH = 0 ΔV = 0 Both B and C TRUE ANSWER : ? YOUR ANSWER : ?
The heat capacity of most substances is greater for the __________ state. Gaseous Solid None of these Liquid TRUE ANSWER : ? YOUR ANSWER : ?
A solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of 100 1000 None of these 3 TRUE ANSWER : ? YOUR ANSWER : ?
In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is 180 200 720 60.3 TRUE ANSWER : ? YOUR ANSWER : ?
Variation of vapor pressure with temperature can be calculated using Clausius-Clapeyron equation, which assumes that the Molal latent heat of vaporisation is constant within the limited temperature range Vapor follows the ideal gas law All of these Volume in the liquid state is negligible compared with that in the vapor state TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not a colligative property? None of these Depression of freezing point Osmotic pressure Lowering of vapor pressure TRUE ANSWER : ? YOUR ANSWER : ?