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JEE Main20202 Sep 2020Evening ShiftChemistryRedox ReactionsActual

The oxidation states of transition metal atoms in K 2 Cr 2 O 7 , KMnO 4 and K 2 FeO 4 , respectively, are x , y and z . The sum of x , y and z is______

Correct answer

0

Step-by-step solution

Compound Oxidation state of transition element. Oxidation states of K =+1 and O=-2 (i) K 2 Cr 2 O 7          x = + 6 (ii) KMnO 4                    y = + 7 (iii) K 2 FeO 4                z = + 6 so ( x + y + z ) = 19

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