P-Block Elements Ques 427
Question: Which of the following is not obtained by direct reaction of constituent elements
[MP PET 1994]
Options:
A) $ XeF_2 $
B) $ XeF_4 $
C) $ XeO_3 $
D) $ XeF_6 $
Show Answer
Answer:
Correct Answer: C
Solution:
$ XeF_2,XeF_4\And XeF_6 $ can be directly prepared
$ Xe+F_2\underset{673K}{\mathop{\xrightarrow{Nitube}}}XeF_2 $ ;
$ Xe+2F_2\underset{6\text{ atm}}{\mathop{\xrightarrow{673K}}}XeF_4 $
$ Xe+3F_2\underset{50-60atm}{\mathop{\xrightarrow{523-573K}}}XeF_6 $
$ XeO_3 $ is obtained by the hydrolysis of $ XeF_6 $ $ XeF_6+3H_2O\to XeO_3+6HF $
