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Assertion(A) : The oxidation numbers are...

Assertion(A) : The oxidation numbers are artificial, they are useful as a book keeping device of elements in reactions
Reason(R) : The oxidation numbers do not usually represent real charge on atoms, they are simply conventions that indicate what the maximum charge could possibly be on an atom in a molecule.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

Text Solution

Verified by Experts

The correct Answer is:
A
Both assertion and reason are true and reason is the correct explanation of assertion.
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Assertion : The oxidation numbers are artificial, they are useful as a book keeping device of elements in reactions Reason : The oxidation numbers do not usually represent real charge on atoms, they are simply conventions that indicate what the maximum charge could possibly be on an atom in a molecule.

Oxidation number is the charge assigned to an atom of a molecule or ion according to some arbitry rules .In neutral molecules , the sum of the oxidation numbers of all the atoms present is zero while in a simple or complex ion it is equal to the net charge on ion. In some cases the oxidation number may be even fractional. Athough sometimes a particular elemenet may have same valency and oxidation state but these are based upon different concepts.The number of oxidation states available for a particular elements are normally more than the valencies A brown complex has the formula: [Fe(H_(2))(O)_(5)NO]SO_(4) the oxidation number of iron is: