A solution is a __________ mixture.

(a)

homogeneous

(b)

heterogeneous

(c)

homogeneous and heterogeneous

(d)

non homogeneous

The number of components in a binary solution is _____________

(a)

2

(b)

3

(c)

4

(d)

5

A 25% alcohol solution means 

(a)

25 ml alcohol in 100 ml of water

(b)

25 ml alcohol in 25 ml of water

(c)

25 ml alcohol in 75 ml of water

(d)

75 ml alcohol in 25 ml of water

Which of the following is hygroscopic in nature?

(a)

ferric chloride

(b)

copper sulphate pentahydrate

(c)

silica gel

(d)

none of the above

Sugar and copper sulphate crystals are dissolved in water. The solution is called as ________.

(a)

binary

(b)

trinary

(c)

ternary

(d)

quaternary

Quick lime is dissolved in water is a ______________ process.

(a)

exothermic

(b)

endothermic

(c)

reversible

(d)

both (a) and (b)

The component present in lesser amount, in a solution is called _____________

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Solute

Example for liquid in solid type solution is ______________

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Amalgam (or) mercury with sodium

Solubility is the amount of solute dissolved in _____ g of solvent.

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100

Polar compounds are soluble in _____ solvents.

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polar

Volume percentage decreases with increases in temperature because _____.

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of expansion of liquids

Blue vitriol

(1)

CuSO₄.5H₂O

Deliquescence

(2)

NaOH

Hygroscopic

(3)

Smoke

Liquid in solid

(4)

CaSO₄·2H₂O

Solid in gas

(5)

CaO

White vitriol

(6)

ZnSO₄·7H₂O

Gypsum

(7)

Amalgam

Define the term: Solution.

Give an example each
i) gas in liquid
ii) solid in liquid
iii) solid in solid
iv) gas in gas

What is aqueous and non-aqueous solution? Give an example.

Define Hydrated salt.

Classify the following substances into deliquescent, hygroscopic. Conc. Sulphuric acid, Copper sulphate pentahydrate, Silica gel, Calcium chloride, and Gypsum salt.

Write notes on
i) saturated solution
ii) unsaturated solution

3.5 litres of ethanol is present in 15 litres of aqueous solution of ethanol. Calculate volume percent of ethanol solution.

Will the cool drinks give more fizz at top of the hills or at the foot? Explain.

A solution was prepared by dissolving 25 g of sugar in 100 g of water. Calculate the mass percentage of solute.