1.

Native silver metal forms a water soluble complex with a dilute solution of NaCN in the presence of :

Answer»

nitrogen
oxygen
carbon dioxide
argon

Solution :SILVER forms a water SOLUBLE complex with NACN in the presence of AIR (or oxygen).`4 Ag+8NaCN+2H_(2)O+O_(2) to underset(("soluble complex"))(4Na[Ag(CN)_(2)]+4NaOH)`


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