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In the conversion of Br₂ to BrO₃⁻, the oxidation number of Br changes from
Options
(a) zero to 5
(b) 1 to 5
(c) zero to -3
(d) 2 to 5
Correct Answer:
zero to 5
Explanation:
Br → BrO₃⁻
Any free (unattached)element with no charge has the oxidation state of zero.
Let the Oxidation number of Br in BrO₃⁻ be x.
Hence x + 3(-2) = -1, x – 6 = -1, x -6 + 5 = -1, x = +5.
Related Questions: - Which of the following cations has the maximum number of unpaired electrons
- Formula of Plaster of Paris is
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Topics: Hydrogen and Redox Reactions
(174)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following cations has the maximum number of unpaired electrons
- Formula of Plaster of Paris is
- The metal used to recover copper from a solution of copper sulphate is
- The mole heat capacity of water at constant pressure, C, is 75 J K⁻¹mol⁻¹.
- Which of the following C-H bonds has lowest bond dissociation energy
Topics: Hydrogen and Redox Reactions (174)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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