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KVPY2013ChemistryAldehydes and Ketones

Aqueous solution of metallic nitrate X reacts with NH ₄ OH to form Y which dissolves in excess NH ₄ OH . The resulting complex is reduced by acetaldehyde to deposit the metal. X and Y , respectively, are

Options

  1. ACs ( NO ₃ ) and CsOH
  2. BZn ( NO ₃ )₂ and ZnO
  3. CAgNO ₃ and Ag ₂ O
  4. DMg ( NO ₃ )₂ and Mg ( OH )₂

Correct answer

C. AgNO ₃ and Ag ₂ O

Step-by-step solution

AgNO ₃+ NH ₄ OH AgOH NH ₄ OH ( excess ) [ Ag ( NH ₃ )₂ ]+ Tollen's reagent + R - CHO R - COOH

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