Question

Question 24

Which of the following attain the linear structure?

(a) $BeC{l}_2$

(b)$NC{O}^{+}$

(c) $N{O}_2$

(d) $C{S}_2$

Answer 1

Answers: (a) and (d).

$BeC{l}_2(Cl-Be-Cl)andC{S}_2(S=C=S)$ both are linear. $NC{O}^{+}$ is non-linear. However, [remember that ${}^{-}NCO{(}^{-}N=C=O)$ is linear because it is isoelecronic with $C{O}_2].N{O}_2$ is angular with bond angle ${132}^{\circ }$ and each O - N bond length of $1.20\stackrel{\circ }{A}$ (intermediate between single and double bond).