Frothing in Yamuna:
The primary reason behind the formation of the toxic foam is high phosphate content in the wastewater because of detergents used in dyeing industries, dhobi ghats and households .Yamuna's pollution level is so bad that parts of it have been labelled 'dead' as there is no oxygen in it for aquatic life to survive.

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