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प्रश्न
Which one of the following can be used as an acid- base indicator by a visually impared student?
पर्याय
Litmus
Turmeric
Vanilla essence
Petunia leaves
उत्तर
Vanilla essence
Explanation -
Vanilla essence is an olfactory inidicator.
APPEARS IN
संबंधित प्रश्न
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Write a note on:
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Write a note on:
Phenolphthalein
