important questions of chemistry from heavy metals class 12

some important questions of class 12 heavy metal chemistry 
1.write the chemistry of blue vitriol ?Also mention its chemical properties.              5

2.write the chemistry of    black oxide of copper? also mention its chemical properties. 

3.write the chemistry of  red oxide of copper  ? also mention its chemical properties.

4.write the chemistry of   white vitriol   ? also mention its chemical properties.

5.write the chemistry of  white oxide of zinc  ? also mention its chemical properties.

6.write the chemistry of  green vitriol   ? also mention its chemical properties.

7.write the chemistry of  calomel  ? also mention its chemical properties.

8.write the extraction of  copper from is sulphide ore.what is  rimman's green.

9.write the extraction of zinc from zinc blend.

10.write the extraction of iron from  iron pyrites.

11.write the extraction of mercury from cinnabar.

12.write the manufacture of steel from by open hearth process.

13.write the five main properties of transitions metals.

14.write four method of preventing iron from rusting.

15.write two method of preparations of corrosive sublimate and further into calomel.

very short answer questions
16.Define rusting  of iron.

17. what is stainless steel.?

18.write the function of  limestone in extraction of iron.

19.what do you mean by plumbosolvency?

20.what is tempering of steel?

21.what s nessler's reagent?

22.write the important use of philosopher's wool

23.write the effect of heat on blue vitriol?

24.write the effect of heat on white vitriol?

25.write the effect of heat on green vitriol?

 

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