In the titration between oxalic acid and acid | vedclass

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(C) The reaction between oxalic acid $(H_2C_2O_4)$ and acidified potassium permanganate $(KMnO_4)$ is slow at room temperature. As the reaction procee

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$C$. An autocatalyst

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(C) The reaction between oxalic acid $(H_2C_2O_4)$ and acidified potassium permanganate $(KMnO_4)$ is slow at room temperature. As the reaction proceeds,$Mn^{2+}$ ions are produced. These $Mn^{2+}$ ions act as a catalyst for the reaction,increasing its rate. Since the product of the reaction itself acts as a catalyst,this phenomenon is known as autocatalysis,and the substance is called an autocatalyst.

List-$I$	List-$II$
$A. N_{2(g)} + 3H_{2(g)} \rightarrow 2NH_{3(g)}$	$I. Fe_xO_y + K_2O + Al_2O_3$
$B. CO_{(g)} + 3H_{2(g)} \rightarrow CH_{4(g)} + H_2O_{(g)}$	$II. Ni$
$C. CO_{(g)} + H_{2(g)} \rightarrow HCHO_{(g)}$	$III. Cu$
$D. CO_{(g)} + 2H_{2(g)} \rightarrow CH_3OH_{(g)}$	$IV. Cu/ZnO - Cr_2O_3$

In the titration between oxalic acid and acidified potassium permanganate,the manganous salt formed catalyses the reaction. The manganous salt is

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