Asked in KMU Centralized Admission Test 2020 2020Moderate

The oxidation state of Cl in NCLO3 is:

Correct answer: A. +1

  • A. +1
  • B. +5
  • C. -1
  • D. +3

Explanation

In the compound NCLO3, the oxidation state of Cl (chlorine) is indeed +5. This means that chlorine has lost 5 electrons and has a positive charge of +5. The oxidation state of an element indicates the number of electrons it has gained or lost in a compound. In this case, chlorine has lost 5 electrons to achieve a more stable state.

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About Oxidation and Reduction

Oxidation involves loss of electrons, increase in oxidation number or addition of oxygen, while reduction involves electron gain, decrease in oxidation number or removal of oxygen. The topic covers oxidising and reducing agents, oxidation-number changes, redox equations and the distinction between oxidation at the anode and reduction at the cathode.

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