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Give answer to the foloowing question:
State the steps involved in the preparation of red rose indicator.
Answer variants:
Crush the petals gently using a mortar and pestle.
Filter the mixture to get the rose petal extract. This liquid can be used as a natural acid-base indicator.
Put the crushed petals into a glass tumbler.
Pour hot water into the tumbler to cover the petals.
Cover the tumbler and wait for \(5\) - \(10\) minutes until the water gets coloured.
The extract obtained is used to test electrical conductivity instead of acids and bases.
Collect some fallen red rose petals from your surroundings. Wash them to remove dust.
The petals are heated until they turn black to obtain the indicator.
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