Which of the following reactions do not result in the preparation of potassium dichromate? (I) `4FeCr_2O_4+8 Na_2CO_3+7O_2to` (II) `Na_2CrO_4+H_2SO_4
Which of the following reactions do not result in the preparation of potassium dichromate?
(I) `4FeCr_2O_4+8 Na_2CO_3+7O_2to`
(II) `Na_2CrO_4+H_2SO_4 to `
(III) `Na_2Cr_2 O_7 + 2KCl to `
A. I and II
B. II and III
C. I and III
D. I, II, and III
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Correct Answer - A
(I) `4FeCr_2O_4+8 Na_2CO_3+7O_2to 8Na_2CrO_4+2Fe_2O_3+8CO_2`
(II) `2Na_2CrO_4+H_2SO_4toNa_2Cr_2O_7+Na_2SO_4+H_2O`
(III) `Na_2Cr_2O_7+2KCl to K_2Cr_2O_7+2NaCl`
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