MCQ
Identify the alloy containing a non-metal as a constituent in it.
- AInvar
- ✓Steel
- CBell metal
- DBronze
$\begin{array}{lc}\hline \text { Alloy } & {\text { Cohstituents }} \\ \hline \text { Invar } & {F e+N i} \\ \hline \text { Steel } & {3 f e+C} \\ \hline \text { Bell-metal } & {C u(80 \%)+\operatorname{Sn}(20 \%) e} \\ \hline \text { Bronze } & {C u(75.90 \%)+\operatorname{Sn}(10.25) \%} \\ \hline\end{array}$
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Reason : Cerium salts are used as catalyst in petroleum cracking.
