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Question

What will be the atomicity of:

a) The gas that was taken inside the body during respiration and is released during photosynthesis.

b) The red colored element which we use in matchsticks.

c) The pale blue gas which forms a layer that absorbs the sun's UV radiation.


A

2, 3, 4 respectively

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B

4, 2, 2 respectively

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C

2, 4, 3 respectively

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D

2, 4, 2 respectively

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Solution

The correct option is C

2, 4, 3 respectively


Atomicity is the number of atoms present in the atom of an element or compound.

The elements are oxygen (the gas that was taken inside the body during respiration and is released during photosynthesis), phosphorus (the red coloured element used in matchsticks) and ozone(pale blue gas that absorbs the sun's UV radiation) respectively. So, their atomicity is 2, 4, 3 respectively as the oxygen (O2) molecule is diatomic (2 oxygen atoms), phosphorus molecule is tetra atomic (4 atoms of phosphorous) and ozone molecule is triatomic (3 oxygen atoms).


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