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Sulphonation of Aromatics

Identify the ...

Question

Identify the incorrect statement among the following :

Ozone reacts with SO

_{2}

to give SO

_{3}

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Silicon reacts with NaOH(aq) in the presence of air to give Na

_{2}

SiO

_{3}

and H

_{2}

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_{2}

reacts with excess of NH

_{3}

to give N

_{2}

and HCl

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_{2}

reacts with hot and strong NaOH solution to give NaBr, NaBrO

_{4}

and H

_{2}

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Solution

The correct option is D Br $_{2}$ reacts with hot and strong NaOH solution to give NaBr, NaBrO $_{4}$ and H $_{2}$ O
A) $3 S O_{2} + O_{3} \to 3 S O_{3}$ .Correct.
B) $2 S i + 2 N a O H + 4 H_{2} O \to 2 N a S i O_{3} + 5 H_{2}$ .Correct
C) $3 C l_{2} + 2 N H_{3} \to 6 H C l + N_{2}$ .Correct
D) $3 B r_{2} + 6 N a O H = N a B r O_{3} + 5 N a B r + 3 H_{2} O$ .Incorrect.
Hence option D is incorrect.

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Identify the incorrect statement among the following :

The correct option is D Br2 reacts with hot and strong NaOH solution to give NaBr, NaBrO4 and H2OA) 3SO2+O3→3SO3.Correct.B) 2Si+2NaOH+4H2O→2NaSiO3+5H2.CorrectC) 3Cl2+2NH3→6HCl+N2.CorrectD) 3Br2+6NaOH=NaBrO3+5NaBr+3H2O.Incorrect.Hence option D is incorrect.