Question

howcan we calculate oxidation no of chramium

Answer 1

Answer:

The oxidation number of a free element is always 0.

The oxidation number of a monatomic ion equals the charge of the ion.

The oxidation number of H is +1, but it is -1 in when combined with less electronegative elements.

The oxidation number of O in compounds is usually -2, but it is -1 in peroxides.

Answer 2

HEYA MATE YOUR ANSWER IS

we can calculate oxidation no. of Chromium by adding the no. of molecular no. of Chromium...

Oxidation no.= 27

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