MCQ
The difference in electronegativity of carbon-halogen bond is minimum in:
- AC−F
- BC−Cl
- CC−I
- DC−Br
Explanation:
Down the group electronegativity decreases.
C−I It has the least electronegativity difference among carbon-halogen bond.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

(Round of to the Nearest Integer).
(Given : $\left. R =8.314\, J\, mol ^{-1} K ^{-1}\right)$
(Given atomic number: $\mathrm{Sc}=21, \mathrm{Ti}=22, \mathrm{~V}=23$, $\mathrm{Cr}=24, \mathrm{Mn}=25$ and $\mathrm{Zn}=30)$