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Standard VII
Chemistry
Litmus
Question

Which of the following is true?
  1. Litmus is extracted from mulberry trees
  2. Litmus is a water soluble mixture of different dyes
  3. Litmus is extracted from different trees
  4. Litmus is the universal indicator

A
Litmus is extracted from mulberry trees
B
Litmus is the universal indicator
C
Litmus is a water soluble mixture of different dyes
D
Litmus is extracted from different trees
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Solution
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A. This is statement is wrong as litmus is extracted from different species of lichens and not mulberry trees.
B. This statement is correct. Litmus is a water-soluble mixture extracted from lichens.
C. This statement is again wrong.
D. This statement is wrong as litmus is a natural indicator and not a universal indicator.

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