Question

Which of the following molecule(s) obey the octet rule?
(i) $\left[ BF _4\right]^-$
(ii) $\left[AlCl _4\right]^{-}$
(iii) $SO _2$,
(iv) $CCl _4$

• A. (i), (ii), (iii), (iv)
• B. (ii), (iii), (iv)
• C. (i), (iii), (iv)
• D. (i), (ii), (iv)

Answer 1

Answer: (D)

Total no. of valence electron around sulphur in $SO_ 2$ is $10$, while in case of other molecules total no. of $8$ electrons are present in each.