Pick out the isoelectronic structures from the following {\CH}_3^{+} ; {\H}_3 {\O}^{+} ; {\NH}_3 ; {\CH}_3^{-} \text{I } \text{ II } \text{ III } \text{ IV }

Correct Answer is : II, III and IV

CGPET 2011 Solved Paper

Section: Chemistry

Question : 84 of 150

Marks: +1, -0

Pick out the isoelectronic structures from the following
CH3+;‌H3O+;‌NH3;‌CH3−
‌I ‌‌‌‌‌‌‌ II ‌‌‌‌‌‌‌ III ‌‌‌‌‌ IV ‌

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