Medium
Which among the following can be used as an indicator to identify an acid?
Which among the following can be used as an indicator to identify an acid?
Methyl orange indicator turns red/pink in acidic solutions, making it a suitable indicator to identify acids; phenolphthalein and turmeric are typically used to detect bases, and red litmus paper does not change colour in acid.
Re-check your working by substituting the answer back into the original question.