Question # 1

How many % age of nitrogen present in air by volume?

Choose an answer

70%

75%

78%

80%

Chalco-Pyrite is an ore of:

Choose an answer

Copper

Silver

Iron

Aluminium

At the time of partition, How many industries wee present in Pakistan.

Choose an answer

30

32

34

40

How many units are in Pakistan for manufacturing of Urea.

Choose an answer

3

6

9

12

Chemical formula of copper glance is:

Choose an answer

Cu2O

Cu2S

CuFeS2

CuSO4

Which one of the ore of copper?

Choose an answer

Copper glance

Chalcopyrite

Both a and b

None of these

On which bases froth floatation process take place?

Choose an answer

Density bases

Concentration basis

Watting basis

None of these

Which one is not the fraction of residual oil?

Choose an answer

Paraffin wax

Asphalt

Fuel oil

Coke

When CO₂ is passed through the ammonical brine the only salt that precipitates is:

Choose an answer

NaHCO₃

NH₄HCO₃

Na₂CO₃

(NH₄)₂CO₃

Sindh alkalies limited was established near Karachi in.

Choose an answer

1965

1966

1970

2000

The number of carbon atoms present in petroleum ether.

Choose an answer

1-5

2-5

3-7

5-7

The impurities associated with the minerals are known as:

Choose an answer

Metallurgy

Ores

Gangue

Compounds

Raw materials used in Solvay's process.

Choose an answer

Brine

Lime stone

Ammonia gas

All

More Classes

Other Links

Chemistry 10th Class English Medium Unit 16 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