Find the number of atoms in the following compound.
$(N H_{4})_{2} S O_{4}$

13

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15

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14

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12

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Solution

The correct option is B $15$
The number of atoms in $(N H_{4})_{2} S O_{4}$ is $2 (1) + 2 (4) + 1 + 4 = 2 + 8 + 1 + 4 = 15$ .
It has 2 N atoms, 8 H atom, 1 S atom and 4 O atoms.

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