Name the oxometal anions of the first series ...

NCERT Class XII Chemistry
Chapter - The d- and f-Block Elements
Questions with Solutions

Question : 6 of 49

Marks: +1, -0

Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.

Solution:

Manganese shows oxidation state of +7 in its oxometal anion

MnO_4^{–}

which is equivalent to its group number 7.

Cr

Cr_2O_7^{2–}

and

CrO_4^{2–}

showoxidation state +6 which is equivalent to its group number 6.

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