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[ Question Bank ] - 2022 — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10Science[ Question Bank ] - 20222 Marks
Question
Give a chemical reaction in which a catalyst is used.
✓

Answer

E.g. In the hydrogenation of ethene, nickel or platinum is used as catalyst.
$\begin{array}{cc}
\phantom{................................}\ce{H}\phantom{...}\ce{H}\\
\phantom{................................}|\phantom{....}|\\
\ce{H - C = C - H \underset{\text{Hydrogen}}{+ H - H} ->[Ni/Pt] H - C - C - H}\\
|\phantom{.....}|\phantom{..........................}|\phantom{....}|\\
\ce{\phantom{.}\underset{\text{Ethene}}{H \phantom{...}H}}\phantom{.........................}
\ce{\underset{\text{Ethane}}{H \phantom{...}H}}
\end{array}$

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