Q11
1 markMCQSection A

A visually challenged student, has to perform a lab test to detect the presence of acid in a given solution. The acid-base indicator preferred by him will be:

Acids, Bases and Salts
Acids, Bases and Salts

Options

(a)Blue litmus
(b)Clove oil
(c)Red cabbage extract
(d)Hibiscus extract
Official Answer

Clove oil is an olfactory indicator, which changes its odour in acidic or basic medium. It is preferred by a visually challenged student to detect the presence of acid in a given solution.

olfactory indicatorclove oilacidic or basic medium

Hint

Recall the concept of olfactory indicators and their use in detecting acids and bases.

Analysis & Explanation

The question requires the student to recall the concept of olfactory indicators and their use in detecting acids and bases. Clove oil is an example of an olfactory indicator that changes its odour in acidic or basic medium, making it a suitable choice for a visually challenged student.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2020?

This question carries 1 mark in the CBSE Class 10 Science 2020 examination.

Which chapter does this question come from in Science?

This question is from the chapter "Acids, Bases and Salts" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Acids, Bases and Salts" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2020 paper?

This is a MCQ question from Section A in the CBSE Class 10 Science 2020 paper.