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Question
Certain metal exhibit variable valencies which include valencies: 1+, 2+, 3+, and 4+.
State the variable valency of the following metal.
Iron
write symbol with the variable valency
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Solution
Iron has variable valency 2 and 3
| \[\ce{Fe^{2+}}\] | \[\ce{Fe^{3+}}\] |
| Ferrous | Ferric |
OR
| \[\ce{Fe[II]}\] | \[\ce{Fe[III]}\] |
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