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प्रश्न
Account for the following :
BiH3 is the strongest reducing agent amongst all the hydrides of group 15.
उत्तर
On moving down a group, the atomic size of elements increases. Thus, the stability of their hydrides decreases due to increase in the E–H bond length. BiH3 has the least stability among group 15 halides. Thus, it is the strongest reducing agent among all the hydrides of group 15.
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संबंधित प्रश्न
Nitrogen does not form pentahalide.
The group 15 element having inner electronic configuration as of argon is-
(a) Phosphorous (z = 15)
(b) Antimony (z =51)
(c) Arsenic (z = 33)
(d) Nitrogen (z = 7)
Account for the following :
Noble gases have very low boiling points.
Maximum covalency of nitrogen is ______.
Collectively the elements of group 15 are called:
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. |
Which of the following statements are correct for \[\ce{SO2}\] gas?
(i) It acts as bleaching agent in moist conditions.
(ii) It’s molecule has linear geometry.
(iii) It’s dilute solution is used as disinfectant.
(iv) It can be prepared by the reaction of dilute \[\ce{H2SO4}\] with metal sulphide.
Assertion: N2 is less reactive than P4.
Reason: Nitrogen has more electron gain enthalpy than phosphorus.
In \[\ce{PCl5}\], phosphorus is in sp3d hybridised state but all its five bonds are not equivalent. Justify your answer with reason.
Basicity of ortho phosphoric acid is:-
