2. Sample Papers
  3. NEET

NEET Sample Paper NEET Sample Test Paper-79

  • question_answer
    The usual covalency of an atom (except hydrogen covalencyl) is equal to 8-number of the group to which element belongs. This is applicable for non-metals of \[\operatorname{p}-block\] only \[{{N}_{2}}\], P, As, Sb all are \[\operatorname{p}-block\] elements, among the following which is most acidic

    A)  \[N{{N}_{3}}\]                        

    B)  \[P{{H}_{3}}\]

    C)  \[As{{H}_{3}}\]                      

    D)  \[Sb{{H}_{3}}\]

    Correct Answer: D

    Solution :

    Because \[{{\operatorname{SbH}}_{3}}\] can easily loose its \[{{H}^{+}}\]acidic character of hydrides increases top to bottom.


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