Question

Answer please

points on oxidation number method​

Answer 1

Answer:

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1⃣points on oxidation number method :

• electrons are transferred between charged atoms.
• The oxidation number of a free element is always 0.
• The oxidation number of a monatomic ion equals the charge of the ion.
• The oxidation number of O in compounds is usually -2, but it is -1 in peroxides

2⃣Balancing redox reaction

• Balance elements in the equation other than O and H.
• Balance the oxygen atoms by adding the appropriate number of water (H2O) molecules to the opposite side of the equation.
• Balance the hydrogen atoms (including those added in step 2 to balance the oxygen atom) by adding H+ ions to the opposite side of the equation.

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Answer 2

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OXIDATION NUMBER METHOD

It mainly refers to the collectivisation of all approaches related to oxidation.Many a times, it becomes difficult to classify a reaction as redox reaction according to all the three approaches, viz., classical, electronic and oxidation number approach.

An example of such a type of reaction is as follows.

CH3NCO + H2O → CH3NH2 + CO2