question_answer

                In which of the following sets, all the given Species are is structural?     JEE Main Online Paper ( Held On 25  April 2013 )

A)                 \[{{\operatorname{CO}}_{2}},\operatorname{N}{{\operatorname{O}}_{2}},Cl{{O}_{2}}Si{{O}_{2}}\]

B)                                        \[PC{{l}_{3}},AlC{{l}_{3}}BC{{l}_{3}}SbC{{l}_{3}}\]

C)                                        \[{{\operatorname{BF}}_{3}},N{{F}_{3}},P{{F}_{3}},Al{{F}_{3}}\]

D)                                        \[\operatorname{BF}_{4}^{-}CC{{l}_{4}},NH_{4}^{+},PCl_{4}^{+}\]