MCQ
In comparison with alkali metals, the electron affinity of halogens is
- ✓Very high
- BVery low
- CNearly same
- DExactly same
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
[Use: $\left.\mathrm{R}=8.3 \,\mathrm{~J} \,\mathrm{~mol}^{-1}\, \mathrm{~K}^{-1}\right]$

(Given) $\Delta H^o_f (CaCO_3,s) = -1207 \, \frac{kJ}{mol}$
$\Delta H^o_f \,(CaO,s) = -635 \,kJ/mol$
$\Delta H^o_f \,(CO_2.g) = -394 \,kJ/mol$

Reason : Butter has an affinity towards benzene.