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- Need explanation for: In context with the transition elements, which of the following statements is incorrect ?
In context with the transition elements, which of the following statements is incorrect ?
- Option 1)
In addition to the normal oxidation states, the zero oxidation state is also shown by these elements in complexes.
- Option 2)
In the highest oxidation states, the transition metals show basic character and form cationic complexes.
- Option 3)
In the highest oxidation states of the first five transition elements (Sc to Mn), all the 4s and 3d electrons are used for bonding.
- Option 4)
Once the d5 configuration is exceeded, the tendency to involve all the 3d electrons in bonding decreases.
Answers (1)
As we learnt in
Oxides of 3d metals -
The ability of oxygen to stabilise the highest oxidation number in the oxides of 'd' block elements are shown in the table or shown in fig.
-
In the highest oxidation state the transition metal show acidic character and form anionic complex.
Option 1)
In addition to the normal oxidation states, the zero oxidation state is also shown by these elements in complexes.
This option is incorrect.
Option 2)
In the highest oxidation states, the transition metals show basic character and form cationic complexes.
This option is correct.
Option 3)
In the highest oxidation states of the first five transition elements (Sc to Mn), all the 4s and 3d electrons are used for bonding.
This option is incorrect.
Option 4)
Once the d5 configuration is exceeded, the tendency to involve all the 3d electrons in bonding decreases.
This option is incorrect.
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