Question # 1

biology bis classified as ___________ science.

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Engineering

Physical

Natural

Chemical

The symbol of lead us

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As

Pb

Sb

Na

The symbol of sodium is :

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Sa

Na

Pa

Ca

The No. of atoms in 1 mole of carbiton is

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6.02 x 1021

6.02 x 1022

6.02 x 1023

6.02 x 1024

How many numbers of moles are equivalent to 8 grams of CO₂?

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0.15

0.18

0.21

0.24

An ion is a charged particles:

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True

False

In some conditions

Never

It is a triatomic molecule

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Sodium chloride

Water

Chalk

Glucose

Atoms as a whole is _________

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+

_

No

Neutral

Mixture has _________ types.

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3

2

1

No types

The study of hydrocarbons and their derived compounds is called

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Physical chemistry

Inorganic chemistry

Organic chemistry

Biochemistry

_________ which occupies space and have mass.

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Matter

Atom

Molecule

All of above

The most abundant element occurring in the oceans is:

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Oxygen

Hydrogen

Nitrogen

Silicon

Potassium's atomic no. is :

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17

18

19

20

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9th Class Chemistry Chapter 1 Fundamentals of Chemsitry English Medium KPK Boards Online Mcqs MCQs With Answers

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