1.

Write thebalancexd chemicalequationfor the following i. Silver chloride is reacted with equation sodium cyanide and theproductthusformedis allowedto react withzinein an alklinemedium . ii Cobalt (II) solutionreacts with KNO_(2) in acetic acidmedium

Answer»

SOLUTION :Silver goes into the coplex and then it is DISPLACED with zine
`AgCI + 2NaCN rarr NaCI + Na[AG(CN)_(3)]`
`2Na[Ag(CN)]_(2) + Zn rarr Na_(2)(CN)_(4)] + 2Ag darr `
II. A yellowprecipitateis formed
`KNO_(2) + CH_(2)COOH rarr CH_(2)XCOOK + HNO_(2)`
`CoCI_(2) + 2KNO_(2) rarr Co(NO_(2))_(2) + 2KCI`
`Co(NO_(2))_(2)+ 2HNO_(2) rarr Co(NO_(2))_(3) + NO + H_(2)O`
`Co(NO_(2))_(3) + 3KNO_(2) + K_(2)[Co(NO_(2))_(6)]`


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