Moderate

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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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.

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