Following steps are involved in manufacturing of potassium dichromate :
Oxidation number of Cr in X, Y and Z are respectively:
Fill your answer as sum of digits till you get the single digit answer.

Question

Following steps are involved in manufacturing of potassium dichromate : Oxidation number of Cr in X, Y and Z are respectively: Fill your answer as sum of digits till you get the single digit answer.

TestHub · Accepted Answer

X (Chromite ore): The formula is FeCr₂O₄, where the oxidation state of Chromium is +3.

Y (Solution): Fusion with sodium carbonate in air yields sodium chromate (Na₂CrO₄), where Cr is +6.

Z (Solution): Adding sulfuric acid converts the chromate to sodium dichromate (Na₂Cr₂O₇), where Cr is +6.

Calculation: The sum of the oxidation numbers is $3 + 6 + 6 = 15$ .

Final Answer: Summing the digits ( $1 + 5$ ) gives the single-digit answer 6.

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