Question # 1

Which one of the following is brittle?

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Sodium

Aluminum

Selenium

Magnesium

The unit of Molarity is :

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Molar

Volume

Both

Nil

The reverse of evaporation is:

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Boiling

Diffusion

Condensation

Freezing

Which one is not a property of electrolytic cell?

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It consists of one complete cell

Anode has +ve charge

It converts electrical energy into chemical one

Anode has -ve charge

PCL5 is ________________ shaped.

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Bipyromidal

Angular

Triangular

Linear

There are ____________ types of solids.

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1

2

6

4

Polyatomic molecules consist of _________ atoms.

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1

More than 1

Less than 1

2

_________ is an example of substance.

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Carbon

Hydrogrn

Oxygen

Water

____________ are good conductors of electricity.

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Covalent compound

Metals

Both

None of these

positive ion hare formed by _________ of electrons.

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Gain

Loss

Sharing

Bonding

The base of modern periodic table is

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Atomic number (Z)

Mass number (A)

Avogadro's Number

Quantum Number

________________ proposed that matter is composed of small particles.

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Greek

English's

Russian

Nil

The lowest energy level is

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K

L

M

N

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