Exercise
Form 7: Measuring pH and Indicators
In this engaging exercise, students will explore the concept of pH by measuring the acidity or alkalinity of various household liquids using pH indicators, fostering hands-on experience in chemistry and enhancing their understanding of acid-base reactions. Through this activity, learners will develop critical observation skills and learn how to interpret pH levels in real-world contexts!
Questions
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MultiChoice
What is a chemical indicator?
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MultiChoice
What color is red litmus paper when placed in an acidic solution?
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MultiChoice
What color is blue litmus paper when placed in a basic solution?
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MultiChoice
What advantage does universal indicator have over single litmus paper?
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MultiChoice
What color is phenolphthalein indicator when added to an acidic solution?
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MultiChoice
Which electronic instrument provides the most accurate measurement of solution pH?
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MultiChoice
What color does bromothymol blue indicator turn in an acidic solution?
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MultiChoice
What color does bromothymol blue indicator turn in a basic solution?
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MultiChoice
Which natural household item can be used to extract a natural pH indicator?
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MultiChoice
What color does red cabbage juice indicator turn when mixed with a strong base?
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MultiChoice
Which synthetic indicator turns from colorless to pink at around pH 8.2 to 10?
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MultiChoice
What color does methyl orange indicator turn in a strongly acidic solution?