2. Questions Bank
  3. JEE Main & Advanced
  4. Chemistry
  5. Structure of Atom / परमाणु संरचना

JEE Main & Advanced Chemistry Structure of Atom / परमाणु संरचना Question Bank Atomic number, Mass number Atomic species

  • question_answer
    Pick out the isoelectronic structures from the following                                 \[\underset{\text{I}}{\mathop{CH_{3}^{+}}}\,\]     \[\underset{\text{II}}{\mathop{{{H}_{3}}{{O}^{+}}}}\,\]     \[\underset{\text{III}}{\mathop{N{{H}_{3}}}}\,\]     \[\underset{\text{IV}}{\mathop{CH_{3}^{-}}}\,\]      [IIT 1993]

    A)                 I and II 

    B)                 I and IV

    C)                 I and III

    D)                 II, III and IV

    Correct Answer: D

    Solution :

               \[CH_{3}^{+}=6+3-1=8{{e}^{-}},\]                    \[{{H}_{3}}{{O}^{+}}=3+8-1=10{{e}^{-}},\]                 \[N{{H}_{3}}=7+3=10{{e}^{-}},\] \[CH_{3}^{-}=6+3+1=10{{e}^{-}}\]


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