Q.

Which of the following molecules contain an atomicity of 4?


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a

Sulphate molecule

b

Phosphorus molecule

c

Ozone molecule

d

Methane molecule 

answer is B.

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Detailed Solution

The molecule containing an atomicity of 4 is a phosphorus molecule.
The number of atoms composing a molecule is known as its atomicity. Here, the sulphur molecule (S8) atomicity is 8, the ozone molecule (O3) atomicity is 3 and the methane molecule (CH4) atomicity is 5. And phosphorus molecule (P4) atomicity is 4. The molecules of many elements are organised into four atoms of that element. They are known as tetra atomic. Examples are P4 and SO3. Therefore, their atomicity is 4.
 
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