Two solutions $A$ and $B$ have a $p H$ of 3 and 9.5 respectively. Which of these will twin litmus solution from blue to red and which one will twin phenolphthalein from colorless to pink.

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Solution

For solution A;
the $p H = 3$ which means, the solution is acidic.
$∴$ It will turn litmus solution from blue to red.
For solution B;
the $p H = 9.5$ which means, the solution is basic.
$∴$ It will turn phenolphthalein solution from colorless to pink.

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Two solutions A and B have a pH of 3 and 9.5 respectively. Which of these will twin litmus solution from blue to red and which one will twin phenolphthalein from colorless to pink.

For solution A;the pH=3 which means, the solution is acidic.∴ It will turn litmus solution from blue to red.For solution B;the pH=9.5 which means, the solution is basic.∴ It will turn phenolphthalein solution from colorless to pink.

Two solutions $A$ and $B$ have a $p H$ of 3 and 9.5 respectively. Which of these will twin litmus solution from blue to red and which one will twin phenolphthalein from colorless to pink.

For solution A;
the $p H = 3$ which means, the solution is acidic.
$∴$ It will turn litmus solution from blue to red.
For solution B;
the $p H = 9.5$ which means, the solution is basic.
$∴$ It will turn phenolphthalein solution from colorless to pink.