Question

Which of the following statements is incorrect regarding caustic potash, KOH?

• A. It is prepared by the electrolysis of an aqueous solution of KCl.
• B. It is used for the absorption of gases like $C{O}_2,S{O}_2$ etc. in eudiometry.
• C. White phosphorus undergoes disproportionation reaction with its aqueous solution, when booiled.
• D. Commercially, it can be prepared by Le-Blanc process, but not by Solvay's process.
• E. Its 2 moles absorb 4 moles of NO forming $KN{O}_2,N_{2}O$ and $H_{2}O$

Answer 1

Answer: (D)

Commercially, it can be prepared by Le-Blanc process, but not by Solvay's process.

$K_{2}C{O}_3$ and not KOH, ca be prepared by Le-Blanc process, but not by Solvay's process commercially.

Thus the statement given in the option D is wrong.

Thus D is the correct answer.