Question # 1

In ________________ Rutherford's was studying radiations.

Choose an answer

1911

1931

1921

1922

The transition temperature of sulphur is:

Choose an answer

96 °C

250 °C

18 °C

218 °C

Which one is not a tetraatomic molecular?

Choose an answer

H2O

H2O2

SO3

BCL3

The formula of rust is:

Choose an answer

Fe₂O₃,nH₂o

Fe₂O₃

Fe(OH)₃-nH₂O

Fe(OH)₃

Bronze (alloy) is a ____________

Choose an answer

Slolution

Mixture

a & b

Nil

Alpha particles are double charged.

Choose an answer

Negative

Positive

Can be both

Nil

Which one of the following is an electron deficient molecule?

Choose an answer

HN₃

BF₃

N₂

O₂

H° + H° are ________________ in energy.

Choose an answer

Lower

Higher

Medium

Nil

Formation of water form hydrogen and oxygen is:

Choose an answer

Redox reaction

Acid-base reaction

Neutralization

Decomposition

The fundamental unit of elements is ___________

Choose an answer

Molecule

Atom

Matter

Mixture

In ________________ Bohr considered hydrogen atom for his model .

Choose an answer

1913

1916

1917

1918

H° - H° has ________________ energy.

Choose an answer

Lower

Higher

Medium

Nil

Force per unit area is called:

Choose an answer

volume

pressure

weight

density

More Classes

Other Links

Chemistry 9th Class English Medium 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