A student needs to test whether a laboratory sample contains a strong base. Which procedure is most appropriate for confirming this?
Add a drop of phenolphthalein and observe a pink colour
A strong base turns colourless phenolphthalein indicator pink, which confirms the presence of a strong base in the sample.
Hence, adding a drop of phenolphthalein and observing a pink colour is the correct test.
Similar Questions
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Important Questions from Chemistry in Everyday Life
Which of the following is a greenhouse gas?
I. Methane
II. Nitrous oxide
Which of the following is NOT a Fossil Fuel?
Which one of the following is used in soda-acid fire extinguishers?
The separation of two immiscible liquids can be done based on the difference in their_______.
Orange juice contains ______ acid due to which it tastes sour.
