A solution is soapy to touch and it turns china rose extracts to green.what is the nature of substance and what will happen if a drop of phenolphthalien is added to it
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• The solution is soapy to touch. Hence it is alkaline in nature (base). (Soapy nature is a property of alkaline media.)
• China rose extracts turn to green when treated with this solution. On the pH colour chart, green colour indicates pH = 7.
• The pH 7 is normally possessed by neutral media.
• This means that a base neutralises an acid (China Rose Extract) to give a substance that is neutral in nature.
• Now, when phenolphthalein is added to an alkaline solution, it turns pink in colour.
• China rose extracts turn to green when treated with this solution. On the pH colour chart, green colour indicates pH = 7.
• The pH 7 is normally possessed by neutral media.
• This means that a base neutralises an acid (China Rose Extract) to give a substance that is neutral in nature.
• Now, when phenolphthalein is added to an alkaline solution, it turns pink in colour.
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