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The Tollens' reaction takes place in a medium that is:
ANeutral
BOrganic
CAlkaline
DAcidic
Answer & Solution
Correct answer: C. Alkaline
1. Hydroxide ions appear in the equation for the test.
2. The aldehyde is oxidised to a carboxylate anion.
3. So the reaction occurs in alkaline medium.
_Source: NCERT Class 12 Chemistry Part II, Chapter 12, Aldehydes, Ketones and Carboxylic Acids._
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