The variable valencies that iron (Fe) can exhibit are _______.

1,3

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2,3

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1,4

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2,4

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Solution

The correct option is B
2,3

Iron (Fe) can exhibit two valencies: 2 and 3. When iron exhibits a valency of 2, the compounds formed are termed as ferrous compounds. When it exhibits a valency of 3, the compounds are called ferric compounds.

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The variable valencies that iron (Fe) can exhibit are _______.

The correct option is B 2,3 Iron (Fe) can exhibit two valencies: 2 and 3. When iron exhibits a valency of 2, the compounds formed are termed as ferrous compounds. When it exhibits a valency of 3, the compounds are called ferric compounds.

The correct option is B
2,3

Iron (Fe) can exhibit two valencies: 2 and 3. When iron exhibits a valency of 2, the compounds formed are termed as ferrous compounds. When it exhibits a valency of 3, the compounds are called ferric compounds.