alleryStart learning →Acids turn blue litmus paper
Ablue
Bgreen
Cred
Dgrey
Answer & Solution
Correct answer: C. red
1. Litmus is a natural acid base indicator.
2. In an acidic solution it changes from blue to red.
3. Bases do the reverse, turning red litmus blue.
_Source: AP/TS SCERT Class 10 Physical Science, "Acids, Bases and Salts"_
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