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Stoichiometry

Which of the ...

Question

Which of the following procedures would be best for achieving the following reaction?

(i)

B r_{2} + F e B r_{3}

(ii)

K M n O_{4}

and heat (iii)

H N O_{3}

and

H_{2} S O_{4}

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(i)

K M n O_{4}

and heat (ii)

B r_{2} + F e B r_{3}

(iii)

H N O_{3}

and

H_{2} S O_{4}

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(i) NBS in

C C l_{4}

and heat (ii)

K M n O_{4}

and heat (iii)

H N O_{3}

and

H_{2} S O_{4}

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(i) NBS in

C C l_{4}

and heat (ii)

N a N O_{2}

and heat

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Solution

The correct option is A (i) $B r_{2} + F e B r_{3}$ (ii) $K M n O_{4}$ and heat (iii) $H N O_{3}$ and $H_{2} S O_{4}$
In the above reaction first bromination is carried out in the presence of $B r_{2}$ and feric bromide which is followed by its oxidation by $K M n O_{4}$ on heating which is a very strong oxidizing agent.
After this the reactant is subjected to nitration in the presence of $H N O_{3}$ and $H_{2} S O_{4}$ which leads to the formation of the product

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