The strongest reducing agent amongest all the hydrides of Group `15`element isA. `BIH_(3)`B. `PH_(3)`C. `NH_(3)`D. `AsH_(3)`

The strongest reducing agent amongest all the hydrides of Group `15`el

1.	The strongest reducing agent amongest all the hydrides of Group `15`element isA. `BIH_(3)`B. `PH_(3)`C. `NH_(3)`D. `AsH_(3)`
Answer» Correct Answer - 1 The tendency to liberate hydrogen inceases as we move from `NH_(3)` to `BIH_(3)`. This happen beacause the size of the central atom increases as we move down the group. Consequently ,its tendency to form strong covalent bond with realtively small `H` atom decreases. Consequently , the reducing character of the hydrides (i.e ability to release hydrogen ) increases on moving down the group. Ammonia is only a mild reducing agent while `BiH_(3)` is the strongest reducing agent amongst all the hyderides.

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)`

The strongest reducing agent amongest all the hydrides of Group `15`element isA. `BIH_(3)`B. `PH_(3)`C. `NH_(3)`D. `AsH_(3)`

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment