Question

A student detected the pH four unknown solutions A, B, C and D as follows: 11, 5, 7 and 2. Predict the nature of the solution.

Answer 1

Solution A is strong basie
Solution B is weak acid
Solution C is neutral
Solution D is strong acid

Answer 2

Predicting the nature of the solution

• The pH value of the solution is used to identify the basicity and acidity of the solution.
• The reference value used for inference is as follows:

1. pH value 1 - 6: Acidic solution
2. pH value 7: Neutral solution
3. pH value 8-above: Basic solution

• The pH of the unknown solutions A, B, C and D when correlated with the standard pH value it gives:

1. Solution A - 11 - Basic solution
2. Solution B - 5 - Acidic solution
3. Solution C - 7 - Neutral solution
4. Solution D - 2 - Acidic solution.

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