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Class 10th Hindi Chemistry

Total questions: 10

Worksheet time: 22mins

Name
Class
Date
1.

The total number of electrons in the valence shell of metals may be :

a)

1

b)

2

c)

3

d)

All of the above

2.

The total number of electrons in the valence shell of a non metals may be

a)

4

b)

5

c)

7

d)

All of the above

3.

Which compound is made through chlor alkali process

a)

NaOH

b)

NaCl

c)

Na₂CO₃

d)

NaHCO₃

4.

What is the colour of plaster of paris

a)

Yellow

b)

Blue

c)

White

d)

Green

5.

A solution turns blue litmus red, its PH is likely to be

a)

8

b)

4

c)

7

d)

10

6.

Which one of the following types of medicines is used for treating indigestion ?

a)

Antibiotic

b)

Analgesic

c)

Antacid

d)

Antiseptic

7.

Which of the following is used to make drinking water free from germs

a)

Washing soda

b)

Baking soda

c)

Baking powder

d)

Bleaching powder

8.

Which of the following is organic acid

a)

Acetic acid

b)

Formic acid

c)

Tartaric acid

d)

All of the above

9.

Which of the following is washing soda

a)

NaHCO₃

b)

Na₂CO₃

c)

Na₂CO₃.10H₂O

d)

CaOCl₂

10.

What is the colour of methyl orange in acidic solution

a)

Green

b)

Blue

c)

Red

d)

Colourless