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On heating a mixture of potassium dichromate and sodium chloride with concentrated sulpuric acid in a dry test tube, the compound formed is
A. chormiun chloride
B. chromyl chloride
C. chloric dioxide
D. chromic acid

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`4NaCl(s)+K_(2)Cr_(2)O_(7)(s)+3H_(2)SO_(4)(l) overset(Delta)toK_(2)SO_(4)+2Na_(2)SO_(4)+underset("(Orange red)")underset("Chromyl chloride")(2CrO_(2)Cl_(2))+3H_(2)O`

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