Question

If a solution changes the colour of blue litmus paper to red, what will the pH of this solution be?

A less than 7 Correct Answer Incorrect Answer
B 14 Correct Answer Incorrect Answer
C more than 7 Correct Answer Incorrect Answer
D 7 Correct Answer Incorrect Answer

Solution

If a solution turns blue litmus red, its pH is likely to be 6. When Blue paper turns red in acid, then the pH is less than 7.

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