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chemical formulae class 7

Total questions: 11

Worksheet time: 6mins

Name
Class
Date
1.

How many atoms of sulfur are in each molecule of H2SO4?

a)

1

b)

4

c)

2

d)

7

2.

What is the chemical formula of Magnesium chloride?

a)

MgCl

b)

MgCl2

c)

MgC

d)

MgC2

3.

What is the chemical formula of sodium sulfate?

a)

SSO4

b)

SoSO4

c)

NaSO4

d)

Na2SO4

4.

What is the name of this chemical, H2SO4?

a)

Hydrogen sulfate

b)

Sulfuric acid

c)

Sulfate

d)

Sulfate hydrogen

5.

What is the formula of Copper (II) oxide?

a)

CUO

b)

CuO

c)

CuO2

d)

Cu2O

6.

What is the formula of nitric acid?

a)

H2SO4

b)

HNO3

c)

HCl

d)

hno3

7.

Which of the following compound is not an acid?

a)

HCl

b)

H2SO4

c)

HNO3

d)

CH4

8.

What is the name of ion that is present in all acids?

a)

hydrogen ion

b)

hydroxide ion

c)

nitrate ion

d)

sulfate ion

9.

Which of the following is not a property of an acid?

a)

pH>7

b)

Sour

c)

Able to conduct electricity

d)

Turns blue litmus paper red

10.

An alkaline taste

a)

salty

b)

bitter

c)

sour

d)

sweet

11.

How many atoms are there in the compound MgCO3?

a)

3

b)

4

c)

5

d)

6