Question # 1

The no.of elements in the first period is

Choose an answer

2

8

18

23

Which one of the following is the most penetrating?

Choose an answer

protons

electrons

neutrons

alpha paticles

For diagnosis of goiter in thyroid gland we use

Choose an answer

Co-60

C-14

I-131

Sr-90

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

Choose an answer

Carbon monoxide

Oxygen

Nitrogen

Argon

Number of protons+ neutrons is :

Choose an answer

Atomic mass

Mass numbers

Both

Nil

In ________________ Rutherford's was studying radiations.

Choose an answer

1911

1931

1921

1922

Brine is an aqueous solution of

Choose an answer

NaCI

NaOH

AgNO3

CaO

Which one of the following will not react with dilute HCI?

Choose an answer

Sodium

Potassium

Calcium

Carbon

The practical unit of concentration is

Choose an answer

%v/v

%v/m

%m/m

M

The maximum no.of electrons that can be accommodated in M shell are

Choose an answer

2

8

18

32

Halogens with metals for

Choose an answer

Ionic bond

Covalent bond

Dative covalent bond

Metallic bond

The study of hydrocarbons and their derived compounds is called

Choose an answer

Physical chemistry

Inorganic chemistry

Organic chemistry

Biochemistry

The formula of benzene is _________

Choose an answer

C6H6O3

C6H6

C12H22

Nil

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