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(A) $1$. Gasification of coal: $C(s) + H_2O(g) \xrightarrow{1270 K} CO(g) + H_2(g)$. This process produces $H_2$ (syngas),but the question asks for pr

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Gasification of coal

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(A) $1$. Gasification of coal: $C(s) + H_2O(g) \xrightarrow{1270 K} CO(g) + H_2(g)$. This process produces $H_2$ (syngas),but the question asks for processes involving the use of dihydrogen.$2$. Formation of vanaspati ghee: This is the hydrogenation of vegetable oils using $H_2$ gas in the presence of a nickel catalyst.$3$. Preparation of $HCl$: $H_2(g) + Cl_2(g) \xrightarrow{h
u} 2HCl(g)$. This process uses $H_2$.$4$. Preparation of metal hydride: $2M(s) + nH_2(g) ightarrow 2MH_n(s)$. This process uses $H_2$.$5$. Gasification of coal (specifically the water-gas shift reaction) is often confused,but the primary gasification step produces $H_2$ rather than consuming it as a reactant in the same way hydrogenation or synthesis does. However,in the context of industrial processes,gasification is a method of production,not a consumption process for $H_2$.

Which of the following processes does not involve the use of dihydrogen?

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