In FeCI3 the oxidation state of Cl is:

Correct answer: C. -1

  • A. Zero
  • B. +1
  • C. -1
  • D. -2

Explanation

In FeCl3, chlorine is more electronegative than iron and typically gains one electron per chlorine atom to achieve a stable octet. This results in an oxidation state of -1 for each chlorine atom. Since there are three chlorine atoms, their combined oxidation state is -3. Iron must balance this with a +3 oxidation state to make the compound neutral. Therefore, the correct oxidation state of chlorine in FeCl3 is -1. The other options are incorrect because chlorine typically does not have oxidation states of zero, +1, or -2 in compounds.

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