Classify the following statements into acid, base and neutral substances.
1. It turns turmeric paper into red.
2. It gives pink colour with phenolphthalein.
3. It makes china rose into a dark pink(magenta).
4. It does not give any colour change with litmus paper.
5. It is sticky to touch.
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Answers
Answer:
- acid
- base
- base
- salt
- base
Answer:
Sorry friend I can't ans Q 5.
Explanation:
1. Turmeric can also act as an indicator. It turn red in a basic medium & remains yellow in an acidic medium .
2. Another commonly used indicator is phenolphthalein. It is colourless in an acidic medium & turns pink in a basic medium.
3. Juice of China rose (hibiscus) petals can also be used as a natural indicator. It turns dark pink (magenta) when added to an acid & turns green when added to a base .
4. Litmus is obtained from lichens and is purple in colour. It's colour changes to red in an acidic medium & to blue in a basic medium. Litmus can be used as an indicator in the form of a solution. In practice, it is more common to use a paper strip that has been dipped in litmus solution & allowed to dry. Such a paper strip is called litmus paper. (It's answer will be neutral )