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koban [17]
3 years ago
8

When is the oxidation state of a metal indicated in the name of a compound?

Chemistry
2 answers:
Nitella [24]3 years ago
4 0

Answer:

B

Explanation:

The oxidation state is present in metals that have multiple oxidation states. Most transition metals have multiple oxidation states. Such as, Iron(II) and Iron (III).

Vikentia [17]3 years ago
4 0

Answer:

When the metal can exist in more than one oxidation state

Explanation:

When metal exhibit more than one oxidation sate, we have to write the oxidation number of the metal in front of it to for a better clarity.

Most of the transition metals exhibit more than one oxidation state due to presence of d electrons.

For example  the oxidation state of iron are "+2 and +3"

The oxidation state of copper are "+1 and +2"

The oxidation state of Mn are :"+2", +4, +7.

so we generally write there oxidation state in roman

For Mn compound in +2 oxidation state we write Mn(II)

For Mn compound in +7 oxidation state we write Mn(VII)

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