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प्रश्न
Account for the following :
N − N single bond is weaker than P − P single bond.
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उत्तर
N-N single bond is weaker than P-P bond due to smaller size of N as compared to P. Smaller size of N leads to smaller N-N bond length. As a result, the lone pair of electrons on the both the N atoms repel each other leading to unstability or weakening of N-N bond.
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संबंधित प्रश्न
Write main differences between the properties of white phosphorus and red phosphorus.
Account for the following :
Reducing character decreases from SO2 to TeO2
What is the action of sodium on arsenic.
In which of the following compound, nitrogen shows the oxidation state of +5?
With respect to protonic acids, which of the following statement is correct?
Acidity of diprotic acid in aqueous solution increases in order.
If chlorine gas is passed through hot NaOH solution, two changes are observed in the oxidation number of chlorine during the reaction. These are :
(i) 0 to +5
(ii) 0 to +3
(iii) 0 to –1
(iv) 0 to +1
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. |
Assertion: N2 is less reactive than P4.
Reason: Nitrogen has more electron gain enthalpy than phosphorus.
In NH3 and PH3 the common is:-
