When chromium metal is tied, to form $K_{2} C r_{2} O_{7}$ , the oxidation state of chromium changes. Select the right option.

0 to 4

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3 to 6

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2 to 6

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0 to 6

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2 to 4

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Solution

The correct option is B 0 to 6
The oxidation state of chromium changes from 0 (in Cr metal ) to +6 ( in $K_{2} C r_{2} O_{7})$ . The change in the oxidation state of chromium is 6.

Hence, the correct option is D.

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When chromium metal is tied, to form K2Cr2O7, the oxidation state of chromium changes. Select the right option.

The correct option is B 0 to 6The oxidation state of chromium changes from 0 (in Cr metal ) to +6 ( in K2Cr2O7). The change in the oxidation state of chromium is 6.Hence, the correct option is D.

When chromium metal is tied, to form $K_{2} C r_{2} O_{7}$ , the oxidation state of chromium changes. Select the right option.

The correct option is B 0 to 6
The oxidation state of chromium changes from 0 (in Cr metal ) to +6 ( in $K_{2} C r_{2} O_{7})$ . The change in the oxidation state of chromium is 6.

Hence, the correct option is D.