NCERT Exemplar Solutions
Class 10 - Science - CHAPTER 2: Acids, Bases and Salts - Multiple Choice Questions
Question 17

Question.  17

Which one of the following can be used as an acid–base indicator by a visually impaired student?

(a)

Litmus

(b)

Turmeric

(c)

Vanilla essence

(d)

Petunia leaves

Detailed Answer with Explanation:

Steps: Vanilla essence has a distinct smell change in acid/base environments that a visually impaired student can detect (question/answer key indicates vanilla essence).

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