A) Both A and R are true and R is the correct explanation of A.
B) Both A and R are true but R is not the correct explanation of A.
C) A is true but R is false.
D) A is false but R is true.
Correct Answer: C
Solution :Assertion is correct but reason is incorrect. Indicators gives different colour in different medium. Vitamin C is a acid which turns litmus colour from red to blue.
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