Question # 1

Which one of the following is liquid in solid solution?

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sugar in water

butter

opal

fog

________________ observed that formation of covalent bonds.

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Rutherford

G.N Lewis

Both a and b

Bohar's

It is an ionic compound

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H2O

NaCI

CH4

HF

P1V1 = P2V2 is mathematical form of ____________ law.

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Bohr's

Charles

Boyle's

Nil

Energy of a shell is ________________

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Variable

Constant

Cannot be changed

Nil

One amu (atomic mass unit) is equivalent to:

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1.66x10^-24 mg

1.66x 10^-24g

1.66x10 g

1.66x10^-23mg

Who discovered the proton?

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Goldstein

J.J Thomson

Neil Bohr

Ruther Ford

The unit of Molarity is :

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Molar

Volume

Both

Nil

________________ cannot be seen by naked eye.

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Matter

Molecules

Solid

Liquids

Br2 + H2S __ 2HBr + S, which one is oxidizing agent:

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H2S

Br2

S

2HBr

One atmospheric pressure is equal to how many pascals?

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101325

10325

106075

10523

Carbon exists in ________________ allotropic forms.

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1

2

3

4

An ion is a charged particles:

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True

False

In some conditions

Never

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