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Worksheets

Practical 1

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Sulfide ion gives black precipitate with

a)

AgNO3

b)

Pb(CH3COO)2

c)

Ferric chloride

d)

All of the above

2.

Barium chloride gives white ppt with thiosulphate if we use:

a)

concentrated S2O32-

b)

concentrated Ba2+

c)

any of them

d)

No ppt is formed between barium and thiosulphate

3.

Scarlet red ppt of HgCl2 with KI disappeared if we add:

a)

excess HgCl2

b)

excess KI

c)

any of them

d)

No ppt formed between HgCl2 and KI

4.

Addition of FeCl3 to potassium ferrocyanide gives:

a)

white ppt

b)

brown color

c)

white ppt

d)

prussian blue ppt

5.

Silver nitrate gives yellow precipitate with:

a)

phosphate

b)

chloride

c)

iodide

d)

phosphate and iodide

6.

Pink color of acidified KMnO4 is disappeared if we add

a)

Nitrate

b)

Nitrite

c)

both of them

d)

None of them

7.

Vogel's test is a special test of cobalt with

a)

carbonate

b)

ferrocyanide

c)

iodide

d)

thiocyanate

8.

Sodium nitroprusside test is a special test for:

a)

thiosulphate

b)

sulphite

c)

sulphide

d)

Sulphate

9.

Chlorine water test is a special test for:

a)

chloride ion only

b)

bromide ion only

c)

iodide ion only

d)

chloride and iodide

e)

iodide and bromide

10.

Brown ring is formed when we add FeSO4 to nitrate ions due to:

a)

[Fe(NO)]+

b)

[Fe(NO)]2+

c)

[Fe(NO)2]2+

d)

[Fe(NO2)]2+