Question # 1

According to Bohr, electrons can revolve only in this orbits whose angular momentum is

Choose an answer

h/2π

n 2h/π

n h2/2π

n h/2π

____________ Metals are electronegative in nature.

Choose an answer

Pure-

Noble-

Non-

Nil

One mole of sodium = ______ .

Choose an answer

24 g

25 g

26 g

23 g

The fundamental unit of elements is ___________

Choose an answer

Molecule

Atom

Matter

Mixture

The earth is made up of ___________ % of iron.

Choose an answer

4

5

6

7

Canal rays are actually

Choose an answer

Electrons

Protons

Neutrons

X-rays

Which of the following is less malleable?

Choose an answer

Sodium

Iron

Gold

Sliver

The vapour pressure of a liquid increase with the:

Choose an answer

increase pressure

increase of temperature

increase of intermolecular forces

increase of polarity of molecules

The unit of Molarity is :

Choose an answer

Molar

Volume

Both

Nil

How many numbers of moles are equivalent to 8 grams of CO₂?

Choose an answer

0.15

0.18

0.21

0.24

Metal oxides are

Choose an answer

Amphoteric

Basic

Acidic

Neutral

The types of solutions on the basis of their physical states are

Choose an answer

3

6

9

12

First energy level is denoted by:

Choose an answer

K

L

M

N

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