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प्रश्न
Among the hydrides of Group-15 elements, which have the maximum basic character?
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उत्तर
With an increase in the size of the central atom, the basic character of group 15 hydrides decreases down the group. Hence, NH3 will have the maximum basic character
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संबंधित प्रश्न
The element that does NOT exhibit allotropy is
- As
- Sb
- Bi
- N
Account for the following:
N2 is less reactive at room temperature.
Give reasons for the following : (CH3)3 P = O exists but (CH3)3 N = O does not.
Discuss the general characteristics of Group 15 elements with reference to their electronic configuration.
Give reasons H3PO3 undergoes disproportionation reaction but H3PO4 does not.
Write the structural difference between white phosphorus and red phosphorus.
Which of the following orders are correct as per the properties mentioned against each?
| (i) | \[\ce{As2O3 < SiO2 < P2O3 < SO2}\] | Acid strength. |
| (ii) | \[\ce{AsH3 < PH3 < NH3}\] | Enthalpy of vapourisation. |
| (iii) | \[\ce{S < O < Cl < F}\] | More negative electron gain enthalpy. |
| (iv) | \[\ce{H2O > H2S > H2Se > H2Te}\] | Thermal stability. |
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?
The elements which are characterized by the outer electronic configuration ns1 to ns2 np6 are collectively called
