Question # 1

Which of the following is an anion.

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F

Cl

S-2

NH3

Outermost shell of chlorine stom has................. electrons.

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1

2

6

7

Oxygen is a

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Monoalent element

Divalent element

Trivalent element

Tertravalent element

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

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Covalent

Ionic

Metalic

None of these

When water molecule gain a proton it form

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H+

OH-

H3O

H2O

While writing a chemical formula positive ionis written on.

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Right

Left

Center

All of these

A molecule consists of two or more

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Compounds

Atoms

Formulae

Element

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

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1

2

3

4

Valency of nitrogen is

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1

2

3

4

Types of coalent bond are

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1

2

3

4

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Science 7th Class English Medium Chapter 6 Online Test MCQs With Answers

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