Question

6. Very short answer type questions.
(a) What do we call the acids which are derived from plant and animals?
(b) Give an example of a strong base.
(c) What is the source of litmus?
(d) What colour does turmeric change into in an acidic medium?
(e) Name the acid that is present in ant sting.
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Answer 1

Answer:

(a) citric acif

(b) copper hydraoxide, ammonium hydraoxide

(c) Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often adsorbed onto filter paper to produce one of the oldest forms of pH indicator, used to test materials for acidity.

(d) yellow

(e) methanoic acid.

Answer 2

Answer:

a) answer - organic acids

b) answer - sulphuric acid

c) answer - lichen

d) answer - no colour change

e) answer - formic acid

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