MCQ
The factors affecting corrosion are
- Aposition of metal in electrochemical series.
- Bpresence of $CO_2$ in water
- CPresence of impurities in metal
- ✓All of the above
The main factors that effect corrosion are
($i$) Presence of a protective coating.
($ii$) Presence of $CO _2$ in water.
($iii$) Presence of impurities coating
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Choose the correct answer from the options given below
$(i)\, {\Delta _f}{H^o}$ 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......$kJ$

