Chemistry Practice MCQs Chapter 4 Class 12


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Created on By Ali Durrani

Chemistry Ch 4 Class 12

1 / 17

The formula of Chile Peter salt is

2 / 17

Which one of the following elements has six valence electrons?

3 / 17

Gas which has percentage equal to 78% In air Is the

4 / 17

Which one of the following Is a vulcanizing agent?

5 / 17

Copper reacts with hot concentrated H2SO4 in presence of

6 / 17

Nitrogen has oxides:

7 / 17

Which of these is not an isotope of Phosphorus?

8 / 17

Both 02 and 03 are Oxidizing agents but 02 is preferred because:

9 / 17

Which one of the following does not have allotropes?

10 / 17

Which member of 5A group has no stable isotope?

11 / 17

H2SO4 is used in industries of?

12 / 17

In rhombic sulphur there are atoms in each molecule?

13 / 17

Which of the following has allotropic forms:

14 / 17

In which of the following the oxidation state of S is the highest

15 / 17

H3PO3 is

16 / 17

Formula of laughing gas is?

17 / 17

  • Which of the following does not occur in Free State?

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