Read to the following and answer any four questions from (i) to (v) :
The primar reason behind the formation of the toxic foam is high phosphate content in the wastewater because of detergents used in dyeing industries, dhobi ghat Yamuna's pollution level is so bad that parts of it have been labelled 'dead' as so there is no oxygen in it for aquatic life to surive.

The table provides the pH value of four solutions P, Q, R and S

Which of the following correctly represents the solutions in increasing order of their hydronium ion concentration ?

Options

A. `P gt Q gt R gt S`
B. `P gt S gt Q gt R`
C. `S lt Q lt R lt P`
D. `S lt P lt Q lt R`

Answer

C