JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Which acts as negative catalyst?

(A)Lead tetraethyl as antiknock compound
(B)Glycerol in decomposition of
(C)Ethanol in oxidation of chloroform
(D)All of the aboveCorrect

Answer: (D)

Solution

Lead tetraethyl is added to petrol specifically to suppress (inhibit) engine knocking (A); glycerol is used to stabilise hydrogen peroxide by slowing its decomposition (B); and ethanol is

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Question ID VK-145009