Question # 1

Which one is not a tetraatomic molecular?

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H2O

H2O2

SO3

BCL3

The unit of Molarity is :

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Molar

Volume

Both

Nil

________________ observed that formation of covalent bonds.

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Rutherford

G.N Lewis

Both a and b

Bohar's

The atomic number of potassium is:

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11

15

18

19

The molar mass of H₂SO₄ is:

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98 g

98 amu

9.8 g

9.8 amu

Dissolution in water is due to ____________ bonding.

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Ionic

Covalent

Hydrogen

Nil

Which one of the following gas diffuses faster?

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hydrogen

helium

fluorine

chlorine

Halogens with metals for

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Ionic bond

Covalent bond

Dative covalent bond

Metallic bond

Which of the following does not affect solubility?

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Temperature

Pressure

Nature OF SOLVENT

Area

Hydrogen is a ____________

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Metal

Non metal

Metalloids

Nil

In ionic bond complete ________________ of electrons occurs.

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Paring

Sharing

Transfer

None

Which of the following can be separated by physical means?

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Mixture

Element

Compound

Radical

In a discharge tube, the pressure of a gas is kept at

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10-2 atm

10-4 atm

10-6 atm

10-8 atm

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