Which of the following is $N O T$ a characteristic of the transition elements in the series from scandium to zinc?
The formation of coloured cations
The presence of at least one unpared electron in a $d -$ orbital of a cation
The ability to form complex ions
The possession of an oxidation state of $+ 1$

I

and

I I

only

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I

and

I V

only

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I V

only

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I I

and

I I I

only

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Solution

The correct option is A $I$ and $I I$ only
Properties and Trends in Transition Metals are-
They should have atleast one unpaired electron in d-orbital of a cation;
have large charge/radius ratio;
are hard and have high densities;
have high melting and boiling points;
form compounds which are often paramagnetic;
show variable oxidation states;
they form various complexes
form coloured ions and compounds;
form compounds with profound catalytic activity;

Zinc and scandium are not called transition elements because they don't have unpaired electron in d-orbital of a cation.

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Which of the following is NOT a characteristic of the transition elements in the series from scandium to zinc?The formation of coloured cationsThe presence of at least one unpared electron in a d−orbital of a cationThe ability to form complex ionsThe possession of an oxidation state of +1