I. Potassium dichromate ore isconcentrated by gravityseparation. II. – InterviewSolution

1.	I. Potassium dichromate ore isconcentrated by gravityseparation. II. Concentratesulphuricacidis usedtoconvertsodiumchromateintosodiumdichromate. III. Potassiumdichromateemitstoxicchromiumfumesuponcooling . IV . It isused in quantiativeanalysisfor thhe estimation of ironcompounds adn iodides .
Answer» I , II and IV only I , Ii , and III only I, II , III and IV I ,II, and IV onlyy ANSWER :A

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