Methanal and formic acid can be distinguished using: 1) sodium chloride

| April 12, 2021 | education

Methanal and formic acid can be distinguished using: 1) sodium chloride 2) ammonia solution of silver oxide 3) litmus 4) sodium bicarbonate 5) copper 6) copper (II) hydroxide

Methanal and formic acid can be distinguished using the following compounds. 1. ammonia solution of silver oxide. H-CHO + 2 Ag2O —> CO2 + H2O + 4 Ag; This reaction is called the “silver mirror” reaction, because as a result, a silver coating forms on the edges. HCOOH + Ag2O -> HOCOOH + 2 Ag; As a result, a silver coating is formed. 2. With bivalent copper hydroxide. When formic acid interacts with copper hydroxide, a red precipitate is formed. Н-СОН + 2 Cu (OH) 2 = HCOOH + Cu2O ↓ + 2 H2O As a result of this reaction, a red precipitate of silver oxide is formed.
Answer: option 2, option 6.



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