Chemistry-
General
Easy

Question

The correct option(s) to distinguish nitrate salts of Mn2+ and Cu2+ taken separately is (are)

  1. Mn2+ show the characteristic green colour in the flame test    
  2. Only Cu2+ show the formation of precipitate by passing H2S in acidic medium    
  3. Only Mn2+ show the formation of precipitate by passing H2S in faintly basic medium    
  4. Cu2+/Cu has higher reduction potential than Mn2+ / Mn (measured under similar conditions)    

The correct answer is: Only Cu2+ show the formation of precipitate by passing H2S in acidic medium

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