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प्रश्न
Arrange the following in the increasing order of property mentioned:
NH3, PH3, AsH3, SbH3, BiH3 (Base strength)
Arrange the following in the order of property indicated for the given set:
NH3, PH3, AsH3, SbH3, BiH3 - increasing base strength.
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उत्तर
BiH3 < SbH3 < PH3 < NH3
On moving down the group, the size of the central atom increases. This decreases the electron density on the central atom, thereby affecting the electron-donating ability of the atom. Hence, the basic strength decreases on moving down the group.
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संबंधित प्रश्न
Discuss the trends in chemical reactivity of group 15 elements.
Which of the following group 15 elements forms metallic bonds in an elemental state?
Which of the following species has the highest dipole moment?
The correct order of oxidising power is:
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. |
Match the items of Columns I and II and mark the correct option.
| Column I | Column II | |
| (A) | Its partial hydrolysis does not | (1) He |
| (B) | It is used in modern diving apparatus | (2) XeF6 |
| (C) | It is used to provide inert atmosphere for filling electrical bulbs |
(3) XeF4 |
| (D) | Its central atom is in sp3d2 hybridisation | (4) Ar |
Assertion: N2 is less reactive than P4.
Reason: Nitrogen has more electron gain enthalpy than phosphorus.
An electron can enter into the orbital when
The elements which are characterized by the outer electronic configuration ns1 to ns2 np6 are collectively called
The decreasing order of the boiling points of the following hydrides is ______.
