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Molecules and Atomicity

The atomicity...

Question

The atomicity of $K N O_{3}$ is :

A

3

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B

4

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C

5

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D

6

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Solution

The correct option is C 5
The atomicity of a molecule is the number of atoms present in it.
$K N O_{3}$ has one potassium atom, one nitrogen atom and 3 oxygen atoms. So, a total of 5 atoms are present in the given compound.
$∴$ Atomicity of $K N O_{3}$ is 5.

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