Question

CO is absorbed by :

• A. CHCl3
• B. Pyrogallol
• C. CCl4
• D. Ammoniacal solution of copper (I) chloride

Answer 1

Answer: (D)

Ammoniacal solution of copper (I) chloride

Answer 2

CuCl + NH3 + CO $\longrightarrow$[Cu(CO)NH3]+ Cl– (soluble complex).