Question

What are the valencies of iron, nitrogen, copper ad sulphur?

Answer 1

Answer:

iron - 3

nitrogen - 5

copper -2

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Answer 2

Answer:

The valencies are :

1. Iron : It has 2 valencies

Fe (II) = Ferrous = 2

Fe (III) = Ferric = 3

2. Copper

Cu (I) = Cuprous = 1

Cu (II) = Cupric = 2

3. Nitrogen = 3

4.Sulphur=2

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