The D And F Block Elements Ques 20
20. The basic character of the transition metal monoxides follows the order
(Atomic No., $Ti=22, V=23, Cr=24, Fe=26$ )
(a) $TiO>VO>CrO>FeO$
[2003]
(b) $VO>CrO>TiO>FeO$
(c) $CrO>VO>FeO>TiO$
(d) $TiO>FeO>VO>CrO$
Show Answer
Solution:
- (a) The basic character of the transition metal monoxide is $TiO>VO>CrO>FeO$ because basic character of oxides decrease with increase in atomic number.
Oxides of transitional metals in low oxidation state i.e., +2 and +3 are generally basic except $Cr_2 O_3$.
BETA
