Suppose a solid solution is formed between two substances. One of whose particles are very large and the other particles are very small, what kind of solution is this likely to be?

Assertion : Colloidal solution is electrically neutral. Reason : Due to similar nature of the charge carried by the particles, they repel each other and do not combine to form bigger particles.

"One mole of all substances contain the same number of specified particles". What is the relation between mole and volume?

Ferric hydroxide sol can be prepared from freshly prepared ferric hydroxide precipitate. It can also be prepared by adding ferric chloride solution to boiling water. In both cases the sol particles are positively charged. What happenswhen an electric pot ential is applied across two platinum electrodes dipping in" ferric hydroxide sol? Explain.

"One mole of all substances contain the same number of specified particles." What is the relation between number of moles and volume?

Equal weight of a certain non volatile non electrolyte solute is dissolved in equal weight of two solvents A and B to form very dilute solution. The relative lowering of vapour pressure for solution B is twice the relative lowering ofvapour pressure for solution A. M_A and M_B are the molecular mass of solvents A and Brespectively, then: a)M A = M B b)M B = 2 × M A c)M A = 4 M B d)M A = 2 M B

"One mole of all substances contain the same number of specified particles". a. Justify the statement. b. How to connect mole, gram atom and gram mole? c. What is the relation between mole and volume? d. Calculate the number of mole of a gas in i. 44.828L at STP ii. 11.207ml at STP