JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Noble Gases Family

  • question_answer
    Which of the following is not obtained by direct reaction of constituent elements [MP PET 1994]

    A) \[Xe{{F}_{2}}\]

    B) \[Xe{{F}_{4}}\]

    C) \[Xe{{O}_{3}}\]

    D) \[Xe{{F}_{6}}\]

    Correct Answer: C

    Solution :

    \[Xe{{F}_{2}},\,Xe{{F}_{4}}\And Xe{{F}_{6}}\] can be directly prepared \[Xe+{{F}_{2}}\,\underset{673K}{\mathop{\xrightarrow{Ni\text{ }\,\text{tube}}}}\,\,Xe{{F}_{2}}\] ;  \[Xe+2{{F}_{2}}\,\underset{6\text{ atm}}{\mathop{\xrightarrow{673K}}}\,\,Xe{{F}_{4}}\] \[Xe+3{{F}_{2}}\,\underset{50-60\text{atm}}{\mathop{\xrightarrow{523-573K}}}\,\,Xe{{F}_{6}}\] \[Xe{{O}_{3}}\] is obtained by the hydrolysis of \[Xe{{F}_{6}}\] \[Xe{{F}_{6}}+3{{H}_{2}}O\,\to \,Xe{{O}_{3}}+6HF\]


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