Question

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23) Indicators are substances which
show a change in colour when
brought in contact with acids and
bases. The most common indicator
used in the laboratory is the litmus. It
is extracted from lichens and is
available either in the form of
solutions or in the form of strips of
paper known as litmus paper. Litmus
paper is either red or blue in colour. It
changes colour depending upon
whether the compound is an acid or
a base. The solutions that do not
show change in colour in any of the
indicators are neither acidic nor
basic. There are a number of
indicators other than litmus which
help us to identify acids and bases. A)
The acid present in guava is *
O
(a) tartaric acid
(b) oxalic acid
O (c) citric acid
d) lentio acid​

Answer 1

Answer:

citic acid is present in high amount in guvava