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Four solutions labelled as P, Q, R and S have pH values 1, 9, 3 and 13 respectively. Which of the following statements about the given solutions is incorrect?

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Solution Q has lower concentration of hydroxyl ions than solution S.

Solutions P and Q will turn red litmus solution blue.

Solution P is highly acidic while solution Q is weakly basic

Solution P has higher concentration of hydrogen ions than solution R.

answer is C.

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Detailed Solution

p H = 1 - P

$p H = 9 - Q$

$p H = 3 - R$

$p H = 13 - S$

$∴$ P, R are acids ; Q, S are bases P, R will turn red litmus to blue.

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