Question # 1

Solutions containing relatively lower concentrations of solute are called :

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Concentrated solutions.

Lighter solutions.

Dilute solutions.

None of above.

Compared to a 1.0M aqueous solution of calcium chloride will have

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The same freezing and boiling point

A lower freezing point and lower boiling point

A lower freezing point and higher boiling point

A higher freezing point and higher boiling point

Which one of the following has continuous solubility curve

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NH₄NO₃

CaCI

CaCI₂. 6H₂O

Na₂SO₄. 10H₂O

Precipitation will occur until the ionic product becomes

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Equal to K_sp

Lesser than K_sp

Greater than K_sp

None of these

Which one of the following has discontinuous solubility curve

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CaCI₂6H₂O

NaCI

KCI

NaNO₃

In which type of following solutions the total volume of solutions may not be necessarily equal to sum of volumes of solute and solvent ?

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Percentage volume/volume

Percentage volume/weight

Percentage weight/volume

Percentage weight/weight

The molal depression constant depends upon

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Nature of solute

Nature of solvent

Δ H_solution

Vapour pressure of solution

The osmotic pressure of 1 m solution at 27°C is

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2.46 atm

24.6 atm

1.21 atm

12.1 atm

What mass of NaOH is required to prepare 2.5 dm³of 1.5 M NaOH solution

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130 g

140 g

150 g

160 g

The process of osmosis was first discovered by

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Nollet

Pfeffer

Traube

Dutrochet

Freezing point depression is measured by

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Beckmann's apparatus

Lands Berger's method

Antifreeze apparatus

All of the above

The term cryoscopy is used for

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Depression of freezing point

Elevation in boiling poing

Lowering of vapour pressure

Osmotic pressure

Solubility of a substance in water decreases with rise in temperature except

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CaCI₂. 6H₂O

Pb(NO₃)₂

K₂Cr₂O₇

Ce₂(SO₄)₃

Which of the following is a colligative property?

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Melting point

Osmotic pressure

Freezing point

Sublimation temperature

Number of moles of the solute dissolved per dm³of the solution is knows as

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Molarity

Formality

%age

None of these

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