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Question

In the preparation of H2O2 by auto-oxidation method, the starting substance is:

A
2-ethylanthraquinone.
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B
2-ethylanthraquinol.
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C
p-benzoquinone.
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D
N-methylaniline.
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Solution

The correct option is A 2-ethylanthraquinone.


In the auto-oxidation method, 2-Ethylanthraquinone is reduced to 2-ethylanthraquinol by Hydrogen in the presence of palladium. This 2-ethylanthraquinol is oxidised by air to 2-ethylanthraquinone again.

Then H2O2 forms. so here the starting substance is 2-ethylanthraquinone.

Hence, the correct option is A

1445088_9265_ans_5bbba30681ef46d3bab8fb07c655aa95.png

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