Question # 1

The example of solid solute in gas solvent is

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butter

Sugar in water

Smoke in air

Opals

Carbon exists in ________________ allotropic forms.

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1

2

3

4

During the formation of water from hydrogen and oxygen, which of the following does not occur?

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Hydrogen has oxidized

oxygen has reduced

oxygen gains electrons

hydrogen behaves as oxidizing agent

The cathode of Daniel cell is made up of

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Zn

Cu

AI

C

Which one is an example of colloids?

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NaCl + Solution

Milk

Fog

Air

Free radical is a

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Extremely stable

Extremely reactive

Extremely inert

All of these

Mass per unit volume is:

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Velocity

Dencity

Pressure

Nil

Bucky molecules have ________________ c-atoms.

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20-60

20-90

40-60

40-100

Alpha particles are double charged.

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Negative

Positive

Can be both

Nil

Smoke in air is the example of solution.

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Gas in Gas

Gas in liquid

liquid in Gas

Solid in Gas

The colour of calcium metal flame is

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Golden yellow

Brilliant white

Brick red

Light green

Bronze (alloy) is a ____________

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Slolution

Mixture

a & b

Nil

N consist of ________________ sub shells.

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4

1

2

0

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