1.

A colourless (X) issoluble in waterandalso in alcohol andamies. ONstringheating (X) gives a browngas (Y) and a greyresidue (X) dissolvesinammon to give a solution (Z) which givessilver mirrorwithaldelydes .A solution of (X) iseasly reducedby iron (II) sulphide .A solution of (X) alsogives a brickredprecipitatewithpotassiumdishronatesolution.Hence , choose thecorrect qalternative

Answer»

`{:("X"," Y","Z"),(PB(NO_(3))_(2),NO_(2),Ag_(2)O):}`
`{:("X"," Y","Z"),(AgNO_(3),NO,[AG(NH_(3))_(2)]^(o+)):}`
`{:("X"," Y","Z"),(AgNO_(3),NO_(2),Ag_(2)O):}`
`{:("X"," Y","Z"),(AgNO_(3),NO_(2),[Ag(NH_(3))_(2)]^(o+)):}`

Solution :`UNDERSET((X))(AgNO_(3))overset(Delta)rarr underset(("Grey residue"))(2Agdarr)+2NO_(2)uarr +underset((Y))(O_(2)uarr)`
`AgNO_(3) +NH_(4)OH rarr [Ag(NH_(3))_(2)]^(o+)`
`2[Ag(NH_(3))_(2)]^(o+) +CH_(3)CHO +H_(2)O rarr 2Ag darr`
`+CH_(3)COO^(Theta) +3NH_(3)^(o+) +NH_(3)`
`Ag^(o+) +Fe^(2+) rarr Agdarr +Fe^(3+)`
`2AgNO_(3) +K_(2)CrO_(4) rarr underset(("Brick red"))(Ag_(2)CrO_(4)darr) +2KNO_(3)`


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