MCQ
Tollen's reagent is
- A${\left[ {Ag{{\left( {N{H_3}} \right)}_2}} \right]^ + }$
- B$A{g_2}O$
- C${\left[ {Cu{{\left( {OH} \right)}_4}} \right]^{2 - }}$
- D$C{u_2}O$
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