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Waec Gce Chemistry Practical 2023 Questions and Answers
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Waec GCE Chemistry Expo 2023
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Waec Gce Chemistry Practical 2023 Questions
Waec Gce Chemistry Practical 2023 Answer
(3ai)
Phenolphthalein is used in titration of CH3COOH2 with NA0H2
Because the titration involves weak acid against Strong Base.
(3aii)
When ZnCO3 is Heated Strongly it gives a yellow colour and when it left for few minutes to cool .
It give white colour
(3bi)
First you dissolved the two inside water, the glucose will be dissolved while the starch remain insoluble
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