Question

`AgNO_(3)overset(Delta)(rarr)(W)+(X)+O_(2)`
`(X)+H_(2)OrarrHNO_(2)+HNO_(3)`
`(W)+HNO_(3)rarrY+NO+H_(2)O`
`(Y)+Na_(2)S_(2)O_(3)("excess")rarr(Z)+NaNO_(3)`
A. `W=Ag" " X=N_(2)O " "Y=AgNO_(3)`
`Z=Na_(2)[Ag(S_(2)O_(3))_(2)]`
B. `W=Ag_(2)O" "X=NOY=AgNO_(3)`
`Z=Na_(3)[Ag(S_(2)O_(3))_(2)]`
C. `W=Ag X=NO_(2)Y=AgNO_(3)`
`Z=Na_(3)[Ag(S_(2)O_(3))_(2)]`
D. `W=Ag_(2)OX=N_(2)Y=AgNO_(3)`
`Z=Na[Ag(S_(2)O_(3))_(2)]`

Answer 1

Correct Answer - C
`AgNO_(3)overset(Delta)(rarr)underset((w))(Ag)+underset((x))(NO_(2))+O_(2)`
`underset((x))(NO_(2))+H_(2)OrarrHNO_(2)+HNO_(3)`
`Ag+HNO_(3)rarrunderset((y))(AgNO_(3))+NO+H_(2)O`
`underset((y))(AgNO_(3))+underset(("Excess"))(Na_(2)S_(2)O_(3))rarrunderset((x))(Na_(3)[Ag(S_(2)O_(3))_(2)])+NaNO_(3)`