Match the observed principal absorptions in the visible spectrum shown List – I with the bond show this absorption in List – II
List – I List – II
(1) $\sigma \rightarrow \sigma^{*}$ (i) $\mathrm{C}-\mathrm{C}$
(2) $n \rightarrow \sigma^{*}$ (ii) $\mathrm{C}-\mathrm{O}$
(3) $n, \pi^{*}$ (iii) $\mathrm{C}=\mathrm{O}$
(4) $\pi, \pi^{*}$ (iv) $\mathrm{C}=\mathrm{C}$
(a)1 – (i), 2 – (ii), 3 – (iii), 4 – (iv)
(b)1 – (i), 2 – (iii), 3 – (ii), 4 – (iv)
(c)1 – (ii), 2 – (i), 3 – (iv), 4 – (iii)
(d)1 – (iv), 2 – (ii), 3 – (iii), 4 – (i)
Answer
Answer: A ✓ checked by 4AB · confidence high
Explanation
σ→σ* belongs to C–C, n→σ* to C–O, n→π* to C=O and π→π* to C=C (a).