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
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$Na _2 O + H _2 O \rightarrow 2 X$
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$A_{(s)} + B^+ \to A^+ + B_{(s)} $; $\Delta H^o = -300\,kJ$ is $70\%$.
The standard electrode potential of cell is :- .................... $\mathrm{V}$