Question # 1

_________ is an example of substance.

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Carbon

Hydrogrn

Oxygen

Water

Scientist used ___________ method.

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Scientific

Non-scientific

Bot

Non

_________ shells of noble gases is complete.

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Outer most

2

1

Nil

O3, Ozone is _________ molecules.

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Homoatomic

Hetroatomic

Monoatomic

Nil

There are _________ elements found till now .

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120

118

119

117

Neutrons have _________ charge.

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+

_

No

Nil

biology bis classified as ___________ science.

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Engineering

Physical

Natural

Chemical

Sort out a compound from the following

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Air

Salt

Ice-cream

Iron

The number of proton in an atom is called _________ number.

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Molecule

Formula

Atomic

Molar

Na__ Na++ e , what type of ionit is :

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Positive

Negative

Neutral

Charged

The formula of benzene is _________

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C6H6O3

C6H6

C12H22

Nil

The period of Alchemists extends from _________ AD.

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800 to 1800

600 to 1600

900 to 1900

700 to 1700

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Chemistry 9th Class English Medium Unit 1 Online Test MCQs With Answers

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