NTA Abhyas JEE Main2020Chemistryd and f Block ElementsPractice
The basic character of the transition metal monoxides follows the order (Atomic numbers Ti = 22, V = 23, Cr = 24, Fe = 26)
Options
- AV O > C r O > T i O > F e O
- BC r O > V O > F e O > T i O
- CT i O > F e O > V O > C r O
- DT i O > V O > C r O > F e O
Correct answer
D. T i O > V O > C r O > F e O
Step-by-step solution
Oxides of transition metals in low oxidation states +2 and +3 (MO, M 3 O 4 and M 2 O 3 ) are generally basic except C r 2 O 3 which is amphoteric in character.