Question

When KMnO₄ solution is added to oxalic acid solution, the decolourisation is slow in the beginning but becomes instantaneous after some time because
(a) CO₂ is formed as the product
(b) reaction is exothermic
(c) $MnO_4^-$ catalyses the reaction
(d) Mn²⁺ acts as autocatalyst

Answer 1

$<b>$
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$\mathbb{NICE...QUESTION}$

ƲƦ ƇƠƦƦЄƇƬ ƠƤƬƖƠƝ

When KMnO₄ solution is added to oxalic acid solution, the decolourisation is slow in the beginning but becomes instantaneous after some time because
(a) CO₂ is formed as the product
(b) reaction is exothermic
(c) $MnO_4^-$ catalyses the reaction
(d) Mn²⁺ acts as autocatalyst

→ [B]


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Answer 2

$\huge\red{Answer}$

(b) reaction is exothermic

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