Chemical Bonding And Molecular Structure Ques 114
114. Which of the following molecule does not have a linear arrangement of atoms?
[1989]
(a) $H_2 S$
(b) $C_2 H_2$
(c) $BeH_2$
(d) $CO_2$
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Answer:
Correct Answer: 114.(a)
Solution:
(a) For linear arrangement of atoms the hybridisation should be $s p$ (linear shape, $180^{\circ}$ angle). Only $H_2 S$ has $s p^{3}$-hybridization and hence has angular shape while $C_2 H_2, BeH_2$ and $CO_2$ all involve $s p$-hybridization and hence have linear arrangement of atoms.
BETA
