Question

In Leclanche cell, hydrogen gas is oxidised to water by

a) NH4Cl b) ZnCl2 c) Graphite d) MnO2​

Answer 1

Answer:

MnO2 must be the right ans as it it an oxidizing agent.

Answer 2

Manganese dioxide Oxidizes Hydrogen gas

Explanation:

• Manganese dioxide ( $MnO_2$ ) also can be called manganese (IV) oxide .
• This ionic compound can catalyze the decomposition of peroxide. Catalyzes decrease the energy for chemical processes.

• It is used as a reagent in organic synthesis, as an example, for the oxidation of allylic alcohols.
• Moreover, $MnO_2$ increases the life-span of a Leclanche cell battery; to extend the speed of removal of hydrogen bubbles during a Leclanche cell.
• This is additionally used for dry-cell batteries, like the alkaline battery and therefore the zinc-carbon battery. $MnO_2$ is additionally used as a pigment and as a precursor to other manganese compounds, like $KMnO_4$. it's used as a reagent in organic synthesis, as an example, for the oxidation of allylic alcohols. additionally to the current, it's also employed in battery cathode mixes and electronics. there's promising potential to use $MnO_2$ in solid-state lithium-ion batteries for automobiles. $MnO_2$ is employed in ferromagnetic ferrites and as a catalyst.
• A catalyst may be a material that changes the chemical rate of the reaction without itself being consumed during a reaction. Having said that, Manganese (IV) oxide could be a catalyst that quickens the decomposition of peroxide to water and Oxygen gas.

Manganese dioxide Oxidizes Hydrogen gas in leclanche cell