Answer :

SJ2006

O.N. of Na = +1

O.N. of O = -2

Let, O.N. of Tin = x

1*2 + x + -2*2 = 0

2+x-4 = 0

x-2 = 0

x = 2

SO OPTION C IS YOUR ANSWER......

Answer: Option (C) is the correct answer.

Explanation:

It is known that oxidation number of sodium is +1 and the oxidation number of oxygen is -2.

Let the oxidation number of tin (Sn) is x.

Therefore, calculate the oxidation number of tin in the given formula as follows.

                              [tex]Na_{2}SnO_{2}[/tex]

       = (2 \times oxidation number of Na) + Oxidation number of Sn + (2 \times oxidation number of O)

        = [tex](2 \times +1) + x + (2 \times (-2))[/tex]

So,         2 + x - 4 = 0

therefore,          x = +2

Thus, we can conclude that the oxidation number of tin (Sn) in the compound [tex]Na_{2}SnO_{2}[/tex] is +2.

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