MCQ 1511 Mark
Which of the following options are not in accordance with the property mentioned against them?
$a. \mathrm{F}_2 > \mathrm{Cl}_2 > \mathrm{Br}_2 > \mathrm{I}_2$ Oxidising power.
$b. \mathrm{MI} > \mathrm{MBr} > \mathrm{MCl} > \mathrm{MF}$ Ionic character of metal halide.
$c. \mathrm{F}_2 > \mathrm{Cl}_2 > \mathrm{Br}_2 > \mathrm{I}_2$ Bond dissociation enthalpy.
$d. \mathrm{HI} < \mathrm{HBr} < \mathrm{HCl} < \mathrm{HF}$ Hydrogen-halogen bond strength.
$a. \mathrm{F}_2 > \mathrm{Cl}_2 > \mathrm{Br}_2 > \mathrm{I}_2$ Oxidising power.
$b. \mathrm{MI} > \mathrm{MBr} > \mathrm{MCl} > \mathrm{MF}$ Ionic character of metal halide.
$c. \mathrm{F}_2 > \mathrm{Cl}_2 > \mathrm{Br}_2 > \mathrm{I}_2$ Bond dissociation enthalpy.
$d. \mathrm{HI} < \mathrm{HBr} < \mathrm{HCl} < \mathrm{HF}$ Hydrogen-halogen bond strength.
- A$a$ and $b$
- B$a$ and $c$
- ✓$b$ and $c$
- D$a$ and $d$
Answer
View full question & answer→Correct option: C.
$b$ and $c$
Bond dissociation enthalpy order is $\mathrm{Cl}_2 > \mathrm{Br}_2 > \mathrm{F}_2 > \mathrm{I}_2$ lonic character of metal halides increases as electronegativity of halogen increases $\mathrm{MI} < \mathrm{MBr} < \mathrm{MCl} < \mathrm{MF}$.