1.

Consider the following statements and arrange in the order of true/false as given in the codes. S_1:Like CO_3^(2-),SO_3^(2-) ions also give test with baryle water , Ba(OH)_2. S_2:Ag_2SO_3 is insoluble in dilute HNO_3 S_3:Triodide ions (l_3^(-)) produced by the reaction of Cu^(2+) and Kl solution are not reduced by excess of sodium thiosulphate solution. S_4:Black precipitate of Cu(SCN)_2 turns into white precipitate when it reacts with saturated solution of SO_2 in water.

Answer»

F T T F
TF F T
F T F T
T T F T

Solution :`S_1:SO_3^(2-)+Ba^(2+)toBaSO_3darr`(WHITE) , `CO_3^(2-)+Ba^(2+)toBaCO_3darr`(white)
`S_2:Ag_2SO_3+H^(+)TO2AG^(+)+SO_2+H_2O`
`S_3:2 Cu^(2+)+5 I^(-)toCu L darr+l_3^(-)(l_2+l^-)`
`I_3^(-)+2S_2O_3^(2-)to3I^(-)+S_4O_6^(2-)`
`S_4:2 Cu(SCN)_2darr + SO_2 + 2 H_2O to 2Cu(SCN)darr`(white)+`2SCN^(-)+SO_4^(2-)`


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