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

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1.

The \(pH\) value of pure water is __________.

\(<2\)
\(=7\)
\(<5\)
\(<7\)

2.

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

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

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