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]

Pick out the isoelectronic structures from the following �

1.	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
Answer» E.

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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]

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