Advertisements
Advertisements
प्रश्न
Why does R3P=O exist but R3N=O does not (R = alkyl group)?
उत्तर १
N (unlike P) lacks the d-orbital. This restricts nitrogen to expand its coordination number beyond four. Hence, R3N=O does not exist.
उत्तर २
Nitrogen does not contains d-orbitals. As a result, it cannot expand its covalency beyond four and cannot form pπ – dπ multiple bonds. In constrast, P contains the d-orbitals, and can expand its covalency beyond 4 and can form pπ-dπ multiple bonds. Hence R3P = O exist but R3N = O does not.
APPEARS IN
संबंधित प्रश्न
Arrange the following in the increasing order of property mentioned :
H3PO3, H3PO4, H3PO2 (Reducing character)
Write main differences between the properties of white phosphorus and red phosphorus.
Among the hydrides of Group-15 elements, which have the maximum basic character?
Among the hydrides of Group-15 elements, which have the maximum reducing character?
Account for the following
Bi(V) is a stronger oxidizing agent than Sb(V).
Account for the following :
Sulphur in vapour form exhibits paramagnetic behaviour.
Which of the following element will form acidic oxides of type E2O3?
Which of the following is the strongest reducing agent?
The ion or group detected by K2[HgI4] is ____________.
H2S is more acidic than H2O because ____________.
The oxidation state of central atom in the anion of compound \[\ce{NaH2PO2}\] will be ______.
Which of the following options are not in accordance with the property mentioned against them?
| (i) | \[\ce{F2 > Cl2 > Br2 > I2}\] | Oxidising power. |
| (ii) | \[\ce{MI > MBr > MC1 > MF}\] | Ionic character of metal halide. |
| (iii) | \[\ce{F2 > Cl2 > Br2 > I2}\] | Bond dissociation enthalpy. |
| (iv) | \[\ce{HI < HBr < HCI < HF}\] | Hydrogen-halogen bond strength. |
In \[\ce{PCl5}\], phosphorus is in sp3d hybridised state but all its five bonds are not equivalent. Justify your answer with reason.
In which of the following compounds, metal is in lowest oxidation state?
In which of the following compounds the metal is in lowest oxidation state?
P4O10 is an anhydride of
The correct order of increase acidic strength of CIOH(1), BrOH (II) and lOH (iii) is.
Which acid of the following pair would you expect to be stronger?
F−CH2−COOH or CH3−COOH
