pH scale, ionic product of water — task. Science State Board, Class 10.

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1.

Which of the following statements about the \(pH\) scale is incorrect?

It is the positive logarithm of \(H^+\) ion concentration of a given solution.
It is the negative logarithm of \(H^+\) ion concentration of a given solution.
It is used to identify whether a solution is acidic, basic or neutral.
It is a scale having \(14\) point.

2.

If the solution is basic, what will be the result of the litmus test?

Red litmus will turn to blue.
Blue litmus will turn to red.
No change in colour.
It will change into orange-pink.

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