Which of the folllowing attain the linear structrue :

1.	Which of the folllowing attain the linear structrue :
Answer» `Be Cl_(2)` `NCO^(+)` `NO_(2)` `CS_(2)` Solution :`BeCl_(2) (Cl-Be-Cl) and CS_(2) (S=C=S)` both are linear `NCO^(+)` is non-linear . HOWEVER, remember that `""^(-)NCO(""^(-)N= C = O )`is linear because it is isoelectronic with `CO_(2)`. `NO_(2)`is angular with angle `132^(@)`and each O-N BOND length of `1.20Å` (intermediate between single and double bond) .

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