NEET Sample Paper NEET Sample Test Paper-72

  • question_answer
    Which of the following is not obtained by direct reaction of constituent elements?

    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 \[\operatorname{Xe} + {{F}_{2}}~~\xrightarrow{Ni\,\,tube} Xe{{F}_{2}};\, Xe+ 2{{F}_{2}}\] \[\xrightarrow[6\,\,atm]{673\,\,K}\,\,\,\,Xe{{F}_{4}}\] \[Xe+3{{F}_{2}}\,\,\xrightarrow[50\,-\,60\,\,atm]{523\,-\,573\,\,K}\,Xe{{F}_{6}}\] \[Xe{{O}_{3}}\] is obtained by the hydrolysis of \[Xe{{F}_{6}}\] \[Xe{{F}_{6}}+3{{H}_{2}}O\to Xe{{O}_{3}}+6HF\]


You need to login to perform this action.
You will be redirected in 3 sec spinner