Which of the following is/are used as olfactory indicators?
i. Vanilla
ii. Onion
iii. Clove
-
A.
All i, ii, and iii
-
B.
i and ii only
-
C.
i only
-
D.
i and iii only
Correct Answer:
A. All i, ii, and iii
Explanation:
Olfactory indicators are substances whose scent changes depending on whether they are in an acidic or basic environment. Vanilla, onion, and clove all possess this characteristic, as their distinct odors can be detected in acidic solutions but are typically neutralized or significantly altered when introduced to a base. Because all three substances—vanilla, onion, and clove—function as olfactory indicators, the correct answer is that all of them (i, ii, and iii) are used for this purpose.
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.