Question # 1

It is a triatomic molecule

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Sodium chloride

Water

Chalk

Glucose

The mass of one molecule of water is:

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18 amu

18g

18mg

18kg

The period of Alchemists extends from _________ AD.

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800 to 1800

600 to 1600

900 to 1900

700 to 1700

Polyatomic molecules consist of _________ atoms.

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1

More than 1

Less than 1

2

Which of the following can be separated by physical means?

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Mixture

Element

Compound

Radical

The value of Avogadro 'no is:

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6.023×1024

6.023×1026

6.023×1023

6.023×1020

The No. of atoms in 1 mole of carbiton is

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6.02 x 1021

6.02 x 1022

6.02 x 1023

6.02 x 1024

____________ Metals are electronegative in nature.

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Pure-

Noble-

Non-

Nil

The molar mass of H₂SO₄ is:

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98 g

98 amu

9.8 g

9.8 amu

_________ can be separated by physical means.

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Mixture

Compound

Solution

Nil

Mixture has _________ types.

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3

2

1

No types

Electrons carry _________ charge.

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+

_

Neutral

Bouble Positive

The symbol of sodium is :

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Sa

Na

Pa

Ca

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