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NEETChemistryAldehydes and Ketones

What is the role of ammonia in Tollens' reagent?

Options

  1. ATo neutralise the aldehyde
  2. BTo dissolve the silver mirror
  3. CTo stabilise the silver ions
  4. DTo enhance the colour of the silver mirror

Correct answer

C. To stabilise the silver ions

Step-by-step solution

Ammonia in Tollens' reagent serves to stabilise the silver ions, preventing their precipitation until they react with the aldehyde.

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