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Separation of MIXTURES

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

SYMBOL OF SODIUM

a)

Na

b)

NA

c)

nA

d)

Sa

2.

VALENCY OF NITRATE

a)

-2

b)

-1

c)

-4

d)

+1

3.

SYMBOL OF RADICAL-PHOSPHATE

a)

PO4

b)

P

c)

P2O4

d)

PO4

4.

FORMULA OF CALCIUM HYDROXIDE

a)

Ca(OH)3

b)

CaO

c)

CaOH

d)

Ca(OH)2

5.

FORMULA OF SULPHURIC ACID

a)

H2SO4

b)

H2SO

c)

H2SO3

d)

H2(SO4)

6.

FORMULA OF NITROUS OXIDE

a)

NO

b)

2NO

c)

NO2

d)

N2O

7.

FORMULA OF CARBON MONOXIDE

a)

CO

b)

CO2

c)

C2O

d)

2CO

8.

FORMULA OF ZINC SULPHIDE

a)

ZnS

b)

zns

c)

zNS

d)

ZNS

9.

FORMULA OF BLUE VITRIOL

a)

CuSO4.5H2O

b)

CuSO45H2O

c)

CuSO.5H2O

d)

CuSO4.H2O

10.

Chemical name of HNO3

a)

Nitrate

b)

Nitric acid

c)

Carbonic acid

d)

Nitrous acid