MCQ
Product $(P)$ is


- A

- ✓

- C

- DNone of these





Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.


$I :$ form sets of compounds which display different oxidation states of the metal
$II :$ form coloured ions in solution
$III :$ burn vigorously in oxygen
$IV :$ act as catalyst
