Which statement correctly describes a solution with a ph of 9?
(1) it has a higher concentration of h3o+ than oh– and causes litmus to turn blue.
(2) it has a higher concentration of oh– than h3o+ and causes litmus to turn blue.
(3) it has a higher concentration of h3o+ than oh– and causes methyl orange to turn yellow.
(4) it has a higher concentration of oh– than h3o+ and causes methyl orange to turn red.

Option (2) is the correct answer.

Explanation:

It is known that when pH of a solution is less than 7 then the solution is acidic in nature and turns blue litmus into red. Whereas when pH of a solution is more than 7 then the solution is basic in nature and turns red litmus into blue.

Hydrogen ions can also be released in the form of hydronium ions ().

And, when a solution has pH 9 then it means the solution is basic in nature.

That is, there will be more number of hydroxide or ions as compared to hydrogen ions or ions.

Thus, we can conclude that the statement it has a higher concentration of OH– than H3O+ and causes litmus to turn blue correctly describes a solution with a pH of 9.

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explanation: