SCIENCE TEST

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SCIENCE TEST

Chapter : SOLUTIONS ( CHEMISTRY).
Class : 12 th.
Made by : JADHAV MANASWINI.
JANVIKAS MAHAVIDYALYA BANSAROLA.

1. The example of solid state is

2 points

Glucose in water

Cooper in gold

Camphor in nitrogen

Oxygen in nitrogen

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2. The blocking of capillaries due to sudden release of bubbles of N2 gas in blood is known as

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Bend

Blend

Mends

All of these

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3. In a binary solution

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Solvent may be liquid

Solvent may be solid

Solute may be gas

Any if these

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4. The increase in the temperature of the aqueous solution placed in closed vessel will result in its

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Molarity to increase

Molarity to decrease

Mole fraction to increase

Mass % to increase

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5. Solubility of gas decrease in a liquid by

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Increase of temperature

Cooling

Increasing pH

Decreasing pH

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6. The temperature at which the vapour pressure of a liquid equals external pressure is called

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Freezing point

Boiling point

Melting point

Critical temperature

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7. Vapour pressure is the pressure exerted by vapour

2 points

In an open system

In any condition

In equilibrium with liquid

In atmosphere

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8. Which of the following has maximum freezing point ?

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0.5 M NaCL(aq)

0.1 M NaCL(aq)

0.01 M NaCL(aq)

Pure H2O

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9. For a non electrolytic solution

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i= 0.5

i=1

i= 0

i= - 1

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10. The value of ebullioscopic contact depends will upon

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Freezing point of solution

Nature of solute

ΔH solution

Nature of solvent

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