Related InterviewSolutions

• Amongst the following, the total number of compounds soluble in concentrated `NH_(3)` solution is: (A)`Ag_(2)CrO_(4)` , (B)`Cu(OH)_(2).CuSO_(4)` , ( C)`PbSO_(3)` , (D)`Al(OH)_(3)` , (E)`Ni(OH)_(2)` (F)`Zn_(3)(PO_(4))_(2)` , (G)`BaSO_(4)` , (H)`Bi(OH)_(2)NO_(3)` , (I)`Mn(OH)_(2)`
• An aqueous solution of a mixture of two inorganic salts, when treated with dilute `HCl`, gave a precipitate `(P)` and a filtrate `(Q)`.The precipitate `P` was found to dissolve in hot water. The filtrate `(Q)` remained unchanged, when treated with `H_(2)S` in a dilute mineral acid medium. However, it gave a precipitate `(R)` with `H_(2)S` in an ammoniaca medium.The precipitate `R` gave a coloured solution `(S)`, when treated with `H_(2)O_(2)` in an aqueous `NaOH` medium. The precipitae `P` containsA. `Pb^(2+)`B. `Hg_(2)^(2+)`C. `Ag^(+)`D. `Hg^(2+)`
• An aqueous solution of a mixture of two inorganic salts, when treated with dilute `HCl`, gave a precipiate (P) and filtrate (Q). The precipitate (P) was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with `H_(2)S` in a dilute mineral acid medium. However, it gave a precipitate (R) With `H_(2)S` in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with `H_(2)O_(2)` in an aqueous `NaOH` medium. The coloured solution S containsA. `Fe_(2)(SO_(4))_(3)`B. `CuSO_(4)`C. `ZnSO_(4)`D. `Na_(2)CrO_(4)`
• An aqueous solution of a mixture of two inorganic salts, when treated with dilute `HCl`, gave a precipiate (P) and filtrate (Q). The precipitate (P) was found to dissolve in hot water. The filtrate (Q) remained unchanged, when treated with `H_(2)S` in a dilute mineral acid medium. However, it gave a precipitate (R) With `H_(2)S` in an ammoniacal medium. The precipitate R gave a coloured solution (S), when treated with `H_(2)O_(2)` in an aqueous `NaOH` medium. The precipitate P containsA. `Pb^(2+)`B. `Hg_(2)^(2+)`C. `Ag^(+)`D. `Hg^(2+)`
• Sodium borate on reaction with conc. `H_2 SO_4` and `C_2 H_5 OH` gives a compound A which burns with a green edged flame. The compound A isA. `H_(2)B_(4)O_(7)`B. `(C_(2)H_(5))_(2)B_(4)O_(7)`C. `H_(3)BO_(3)`D. `(C_(2)H_(5))_(3)BO_(3)`