Which Of The Following Is Correct Order Of Bond Strength?

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Question

Which of the following is correct order of bond strength?

Solution

Correct option is

 

                                                  N2                      

Bond energy in KJ mole–1    942         841         765

In case of N2 to N2+ we expect the bond length to increase when an e is removed from the bonding π molecular orbitals. Actually it decreases slightly. This may be rationalised when we notice that removal of an efrom a diatomic species tends to decrease inter e repulsion and thereby shortens bond lengths.    

Testing

SIMILAR QUESTIONS

Q1

The dipole moment H2O2 is move than that of H2O but H2O2 is not a good solvent because:

Q2

Phosgene can be obtained when:

Q3

The gas produced when ammonium bisulphide is added to an aqueous solution of aluminium sulfate is

Q4

NaNO2 gives coloured fumes on treatment with dilute acids. The colour of fumes is

Q5

When NaNO3 is heated with (NH4)2SO4 a colourless gas & a residue is obtained. The colour of residue is

Q6

The strongest reducing agent amongst the following is

Q7

Of the following acids of sulphur which one has more than one oxidation state of sulphur atom?

Q8

Of the following which compound is most unstable?

Q9

 

An aqueous solution of a gas shows following reactions:  

(i) It turns red litmus blue

(ii) When added in excess to a copper sulphate solution a deep blue colour is obtained.

(iii) On addition to ferric chloride solution a brownish precipitate soluble in HNO3 is obtained.       

Identify the gas.

Q10

Ammonium dichromate on heating gives