Question # 1

_________ shells of noble gases is complete.

Choose an answer

Outer most

2

1

Nil

Industrial chemistry deals with the manufacturing of compounds:

Choose an answer

in the laboratory

on micro scale

on commercial scale

on economic scale

The most abundant element occurring in the oceans is:

Choose an answer

Oxygen

Hydrogen

Nitrogen

Silicon

The symbol of lead us

Choose an answer

As

Pb

Sb

Na

Potassium's atomic no. is :

Choose an answer

17

18

19

20

A _________ is a pure substance is made up of two or more elements.

Choose an answer

Mixture

Elements

Solution

Compound

_________ can be separated by physical means.

Choose an answer

Mixture

Compound

Solution

Nil

................. can be decomposed into simpler substanmce.

Choose an answer

Compound

Element

Solution

Mixture

Mixture has _________ types.

Choose an answer

3

2

1

No types

Which one is largest?

Choose an answer

Exo

Peta

Atto

Pico

Neutrons have _________ charge.

Choose an answer

+

_

No

Nil

___________ is a pure substance that can be broken down.

Choose an answer

Matter

Element

Mass

Mixture

Elements are represented by chemical _________

Choose an answer

Abbreviation

Unit

Symbols

It can be represented

More Classes

Other Links

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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer