Question # 1

The quantity of a matter in a body is called ____________

Choose an answer

Mass

Weight

Atom

Molecule

Amadeo Avogadro was a _______________ scientist.

Choose an answer

Italian

English

Greek

Russian

Which one of the following pair has the same mass?

Choose an answer

1 mole of CO and 1 mole of N₂

1 mole of CO and 1 mole of CO₂

1 mole of O₂ and 1 mole of N₂

1 mole of O₂ and 1 mole of CO₂

The period of Alchemists extends from _________ AD.

Choose an answer

800 to 1800

600 to 1600

900 to 1900

700 to 1700

The symbol of lead us

Choose an answer

As

Pb

Sb

Na

Atoms as a whole is _________

Choose an answer

+

_

No

Neutral

All chemists invented all except:

Choose an answer

Beakers

Spirit lamp

Funnels

Retorts

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

Choose an answer

Molecule

Formula

Atomic

Molar

The atomic number is represented by ____________

Choose an answer

A

Y

X

Z

The molecular mass of water is

Choose an answer

16 amu

14 amu

18 amu

20 amu

Industrial chemistry deals with the manufacturing of compounds:

Choose an answer

in the laboratory

on micro scale

on commercial scale

on economic scale

Atoms are made of sub _________

Choose an answer

Atoms

Molecules

Charge

Atomic particles

The mass of one molecule of water is:

Choose an answer

18 amu

18g

18mg

18kg

The smallest under of an ionic compound is

Choose an answer

Atom

Formula unit

Ion

Molecule

_________ elements naturally occurring.

Choose an answer

92

118

93

117

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

Choose an answer

Choose an answer