Question # 1

An atm with stable elecrronic configuration can exist.

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Reacts readily

Can not exist

Independently

Combined form

Chemical formula of Sulphuric Acid.

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HCl

H2SO4

HNO3

CH3COOH

Oxygen is a

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Monoalent element

Divalent element

Trivalent element

Tertravalent element

Chemical bond between N2 Molecule is

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Ionic

Single covalent

Double covalent

Triple vocalent

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

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1

2

3

4

Which of teh following is cation.

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H2

H2O

CO2

NH+4

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

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1

2

6

7

Chemical bond in O2 is.

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Ionic

Covalent

Metallic

None of these

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

When water molecule gain a proton it form

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H+

OH-

H3O

H2O

Which of the following is an anion.

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F

Cl

S-2

NH3

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

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