MHT CET 2023 Chemistry question

Which from following catalyst is used in decomposition of KClO ?

(A)Platinized asbestos
(B)Fe-Cr catalyst
(C)Ni
(D)MnOCorrect

Answer: (D)

Solution

Potassium chlorate decomposes on heating to give KCl and oxygen: . Manganese dioxide lowers the decomposition temperature (to about 473 K) and is the catalyst used, so

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Question ID VK-098346