Q61 / 197 · NEET 2009 (Mains) · Chemistry
In the case of alkali metals, the covalent character decreases in the order :
- Correct answerA$\mathrm{MI}>\mathrm{MBr}>\mathrm{MCl}>\mathrm{MF}$
- B$\mathrm{MCl}>\mathrm{MI}>\mathrm{MBr}>\mathrm{MF}$
- C$\mathrm{MF}>\mathrm{MCl}>\mathrm{MBr}>\mathrm{MI}$
- D$\mathrm{MF}>\mathrm{MCl}>\mathrm{MI}>\mathrm{MBr}$
Solution
$\mathrm{MI}>\mathrm{MBr}>\mathrm{MCl}>\mathrm{MF}$
Down the group increases covalent character
Hence, the correct answer is option: 'A'.