MCQ
Isotopes have same____but different____.
- AAtomic number, mass number.
- BMass number, atomic number.
- CNumber of neutrons, atomic number.
- DNone of these.
Explanation:
Isotopes of an element have same atomic number and different mass numbers.
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$(i)\, {\Delta _f}{H^o}$ of $N_2O$ is $82\, kJ\, mol^{-1}$
$(ii)$ Bond energies of $N \equiv N,N = N,O = O$ and $N = O$ are $946, 418, 498$ and $607\, kJ\, mol^{- 1}$ respectively
The resonance energy of $N_2O$ is......$kJ$