Carbon monoxide can be estimated by reaction withA. ammoniacal solution of cuprous chlorideB. (2) ammoniacal solution of silver nitrateC. `PdCl_(2)`D. `I_(2)O_(5)`

Carbon monoxide can be estimated by reaction withA. ammoniacal solutio

1.	Carbon monoxide can be estimated by reaction withA. ammoniacal solution of cuprous chlorideB. (2) ammoniacal solution of silver nitrateC. `PdCl_(2)`D. `I_(2)O_(5)`
Answer» Correct Answer - D `5CO(g) + I_(2)O_(5) rarr I_(2)(s) + 5CO_(2)(g)` The iodine which is produced quantitatively is titrated with standard sodium thiosulphate solution. `CO` is readily absorbed by an ammoniacal solution of `CuCl` to give `CuCl . CO . 2H_(2)O`. It reduces an ammoniacal solution of `AgNO_(3)` to silver (black). In the absence of other gaseous reducing agents, this serves as a test for the gas. It also reduces `PdCl_(2)` to `Pd` `PdCl_(2) + CO + H_(2)O rarr Pd + CO_(2) + 2HCl`

Discussion

No Comment Found

Related InterviewSolutions

An amorphous solid (X) burns in air to form a gas ( Y) which turns lime water milky. This gas decolourises aqueous solution of acidified `KMnO_(4).` Gas (Y) reacts with oxygen to give another gas (Z) which is responsible for acid rain. X, Y and Z areA. `{:("X","Y","Z"),(C, CO,CO_(2)):}`B. `{:("X","Y","Z"),(S, SO_(2),SO_(3)):}`C. `{:("X","Y","Z"),(P, P_(2)O_(3),P_(2)O_(5)):}`D. `{:("X","Y","Z"),(S, SO_(3),H_(2)SO_(4)):}`
vii. The stability of dihalides of ` Si, Ge , Sn` and Pb increases steadily in the sequence :A. `PbX_(2) lt lt SnX_(2) lt lt GeX_(2) lt lt SiX_(2)`B. `GeX_(2) lt lt SiX_(2) lt lt SnX_(2) lt lt PbX_(2)`C. `SiX_(2) lt lt GeX_(2) lt lt PbX_(2) lt lt SnX_(2)`D. `SiX_(2) lt lt GeX_(2) lt lt SnX_(2) lt lt PbX_(2)`
`NO_(2)`,a red -brown poisonous gas is prepared in the laboratory by heatingA. `NaNO_(3)`B. `NH_(4)NO_(3)`C. `Pb(NO_(3))_(2)`D. `KNO_(3)`
Why has it been difficult to study the chemistry of radon?A. it is radioactive with short half lifeB. it is chemically inertC. its compound is not isolatedD. it has low boiling point
`SF_(6)` is not easily hydrolysed whereas `SF_(4)` can be. Assign reason.
Reduction potentials of some ions are given below. Arrange them in decreasing order of oxidising power. A. `ClO_(4)^(-)gt IO_(4)^(-) gt BrO_(4)^(-)`B. `IO_(4)^(-) gt BrO_(4)^(-) gt ClO_(4)^(-)`C. `BrO_(4)^(-) gt IO_(4)^(-) gt ClO_(4)^(-)`D. `BrO_(4)^(-) gt ClO_(4)^(-) gt IO_(4)^(-)`
Reduction potentials of some ions are given below. Arrange them in decreasing order of oxidising power. Ion `" " CiO_(4)^(-) " " IO_(4)^(-) " " BrO_(4)^(-)` Reduction `" " E^(Theta)=1.19 V " " E^(Theta)=1.65 V " " E^(Theta)=1.74` potential `E^(Theta)//V`A. `ClO_(4)^(-) gt IO_(4)^(-) gt BrO_(4)^(-)`B. `IO_(4)^(-) gt BrO_(4)^(-) gt ClO_(4)^(-)`C. `BrO_(4)^(-) gt IO_(4)^(-) gt ClO_(4)^(-)`D. `BrO_(4)^(-) gt ClO_(4)^(-)IO_(4)^(-)`
`SO_(2)+NaClO_(3) overset(H^(+))to`
Aluminium exhibits +3 oxidation state. As we move down the group, +1 oxidation state gets more stable. This is a consequence ofA. increaseing size of the atomB. inert pair effectC. electron deficient natureD. `p pi - p pi` bonding
Which of the following Lewis acids exhibits maximum acidic strength?A. `BI_(3)`B. `BBr_(3)`C. `BCl_(3)`D. `BF_(3)`

Carbon monoxide can be estimated by reaction withA. ammoniacal solution of cuprous chlorideB. (2) ammoniacal solution of silver nitrateC. `PdCl_(2)`D. `I_(2)O_(5)`

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment