What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20)? AB₂ A₂B A₂B₃ AB₃ TRUE ANSWER : ? YOUR ANSWER : ?
Equal masses of CH₄ and H₂ are mixed in an empty container. The partial pressure of hydrogen in this container expressed as the fraction of total pressure is 8/9 1/9 5/9 1/2 TRUE ANSWER : ? YOUR ANSWER : ?
Size range of the colloidals particles is 500 - 1000 microns 50 - 200 microns 10 - 50 Angstrom 5 - 200 milli-microns TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is followed by an ideal solution ? Trouton's rule Amgat's law Raoult's law Boyle's law TRUE ANSWER : ? YOUR ANSWER : ?
Ideal solution is formed, when its components have zero Heat of mixing Volume change Neither A nor B Both A & B TRUE ANSWER : ? YOUR ANSWER : ?
Colligative properties of a dilute solution are those, which depend entirely upon the Number of solute molecules contained in a given volume of the solvent Constitution of the solute None of these Chemical composition of the solute TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent? Nature of solute Temperature Nature of solvent Pressure TRUE ANSWER : ? YOUR ANSWER : ?
Addition of a non-volatile solute to a pure solvent Both B and C Decreases its freezing point Increases its boiling point Increases its freezing point TRUE ANSWER : ? YOUR ANSWER : ?
The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight. Remains unchanged Either A or B; depends on the liquid Increases Decreases TRUE ANSWER : ? YOUR ANSWER : ?