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Characteristics of Particles of Matter

An aqueous so...

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An aqueous solution is 1m in ki. Which change will cause the vapour pressure of the solution to increase? 1 addition of nacl 2 addition of na2so4 3 addition of 1 m ki 4 addition of water

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Q. Addition of which solute in 1.0 molar KI solution will not cause a change in vapour pressure:

Q. An aqueous solution is

1

K I

. Which change will cause the vapour pressure of the solution to increase?

Q. An aqueous solution is 1.00 molal in KI. Which change will cause the vapour pressure of the solution to increase?

Q. For different aqueous solutions of

0.1 N

.1 N N a C l, 0.1 N

N a_{2} S O_{4}

0.1 N N a_{2} P O_{4}

27^{o} C

, the correct statements are:
1. The order of osmotic pressure is,

N a C l > N a_{2} S O_{4} > N a_{3} P O_{4} > u r e a

π = \frac{Δ T_{b}}{K_{b}} \times S T

for urea solution.
3. Addition of salt on ice increases its melting point.
4. Addition of salt on ice brings in melting of ice earlier.

An aqueous solution of an inorganic compound (X) gives the following reactions.

(i) With an aqueous solution of

B a C l_{2}

, a precipitate insoluble in dilute

H C l

(ii) Addition of excess of

K I

gives a brown precipitate which turns white on addition of excess hypo solution.

(iii) With an aqueous solution of potassium ferrocyanide a chocolate colored ppt. is obtained.

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