Question # 1

The third abundant as found in the earth' crust is:

Choose an answer

Carbon monoxide

Oxygen

Nitrogen

Argon

Neutrons have _________ charge.

Choose an answer

+

_

No

Nil

The equation of relationship between atomic number (Z) and mass number (A) is

Choose an answer

A = Z + N

A = Z - n

A = Z

A =2Z + n

The symbol of sodium is :

Choose an answer

Sa

Na

Pa

Ca

Atoms are made of sub _________

Choose an answer

Atoms

Molecules

Charge

Atomic particles

biology bis classified as ___________ science.

Choose an answer

Engineering

Physical

Natural

Chemical

____________ Metals are electronegative in nature.

Choose an answer

Pure-

Noble-

Non-

Nil

H2O is what type of molecules it is:

Choose an answer

Manoatomic

Polyatomic

Pentaatomic

Nil

The mass of one molecule of water is:

Choose an answer

18 amu

18g

18mg

18kg

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

Choose an answer

Positive

Negative

Neutral

Charged

All chemists invented all except:

Choose an answer

Beakers

Spirit lamp

Funnels

Retorts

The smallest under of an ionic compound is

Choose an answer

Atom

Formula unit

Ion

Molecule

The empirical formula of glucose is

Choose an answer

CHO

CH2O

C2HO

CHO2

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