Question # 1

Chemical bond in O2 is.

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Ionic

Covalent

Metallic

None of these

A molecule consists of two or more

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Compounds

Atoms

Formulae

Element

Negatively charged atom or grop of atoms is called.

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Proton

Electron

Anion

Cation

How many atoms orm one molecuel of chlorine.

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1

2

3

4

Chemical bond between N2 Molecule is

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Ionic

Single covalent

Double covalent

Triple vocalent

While writing a chemical formula positive ionis written on.

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Right

Left

Center

All of these

Chemical bond is O2 is.

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Ionic

Covalent

Metalic

None of these

Which of the following is an anion.

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F

Cl

S-2

NH3

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

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Covalent

Ionic

Metalic

None of these

Which of the following has stble elecronic configuration.

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H

He

C

Li

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

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1

2

3

4

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

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1

2

6

7

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

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