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AIIMS 2013
Exam
AIIMS
Year
2013
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

AIIMS 2013 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Which of the following statement is not true for hydrolysis of...

Which of the following statement is not true for hydrolysis of XeF6\mathrm{XeF}_6 ?

Options

  1. AXeOF4\mathrm{XeOF}_4 is formed.
  2. BXeO2 F2\mathrm{XeO}_2 \mathrm{~F}_2 is formed.
  3. CIt is a redox reaction.
  4. DXeO3\mathrm{XeO}_3 is formed.

Correct answer

C. It is a redox reaction.

Step-by-step solution

(c) : Hydrolysis of XeF6\mathrm{XeF}_6 is not a redox reaction. XeF6\mathrm{XeF}_6 reacts violently with water, but slow hydrolysis by atmospheric moisture gives highly explosive solid, XeO3\mathrm{XeO}_3. XeF6(s)+3H2O(l)⟶XeO3(s)+6HF(aq)\mathrm{XeF}_{6(s)}+3 \mathrm{H}_2 \mathrm{O}_{(l)} \longrightarrow \mathrm{XeO}_{3(s)}+6 \mathrm{HF}_{(a q)} Partial hydrolysis of XeF6\mathrm{XeF}_6 yields XeOF4\mathrm{XeOF}_4 and XeO2 F2XeF6+H2O⟶XeOF4+2HFXeF6+2H2O⟶XeO2 F2+4HF\begin{aligned} & \mathrm{XeO}_2 \mathrm{~F}_2 \\ & \mathrm{XeF}_6+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{XeOF}_4+2 \mathrm{HF} \\ & \mathrm{XeF}_6+2 \mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{XeO}_2 \mathrm{~F}_2+4 \mathrm{HF} \end{aligned}
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