Question # 1

Which of the following is an anion.

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F

Cl

S-2

NH3

A molecule consists of two or more

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Compounds

Atoms

Formulae

Element

Chemical bond in O2 is.

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Ionic

Covalent

Metallic

None of these

Whcih of the following has double covalent bound.

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Br2

CO2

HCl

N2

Chemical bond is O2 is.

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Ionic

Covalent

Metalic

None of these

When water molecule gain a proton it form

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H+

OH-

H3O

H2O

Valency of nitrogen is

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1

2

3

4

Chemical formula of Sulphuric Acid.

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HCl

H2SO4

HNO3

CH3COOH

Chemical bond teh forms between metallic and non-metallic atoms.

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Covalent

Ionic

Metalic

None of these

Outermost shell of sodium atom has ...... electrons.

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1

2

3

4

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