Question # 1

biology bis classified as ___________ science.

Choose an answer

Engineering

Physical

Natural

Chemical

Which of the following can be separated by physical means?

Choose an answer

Mixture

Element

Compound

Radical

H2O is what type of molecules it is:

Choose an answer

Manoatomic

Polyatomic

Pentaatomic

Nil

There are _________ types of bonds.

Choose an answer

1

2

3

4

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

Choose an answer

Molecule

Formula

Atomic

Molar

One carbon is _________ times heavier than hydrogen.

Choose an answer

12

13

14

15

Potassium's atomic no. is :

Choose an answer

17

18

19

20

Which one an example of heterogeneous mixture?

Choose an answer

Ice cream

Concrete

Both a & b

NiL

The molar mass of H₂SO₄ is:

Choose an answer

98 g

98 amu

9.8 g

9.8 amu

_________ elements naturally occurring.

Choose an answer

92

118

93

117

Amadeo Avogadro was a _______________ scientist.

Choose an answer

Italian

English

Greek

Russian

Number of protons+ neutrons is :

Choose an answer

Atomic mass

Mass numbers

Both

Nil

All chemists invented all except:

Choose an answer

Beakers

Spirit lamp

Funnels

Retorts

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