1.

Arrange H_(2), O_(2), N_(2)in decreasing order of bond enthalpy.

Answer»

SOLUTION :So, bond ENTHALPY number : `O_(2) lt H_(2) lt N_(2)`

NOTE : Generally, Bond ORDER `prop ` bond enthalpy but this is not in `H_(2) and O_(2) `. Why ?
`because ` RULES only for, between two atoms of only one elements.


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