The total number of atoms present in one molecule of $P b (N O_{3})_{2}$ :

7

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8

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9

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10

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Solution

The correct option is C $9$
There is 9 number of atoms present in one molecule of $P b (N O_{3})_{2}$ .

They are : 1 lead i.e Pb, 2 nitrogen i.e. N, and 6 oxygen i.e. O atoms.

The total number of atoms $= 1 + 2 + 6 = 9$ .

Hence, option C is correct.

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