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JEE Main20207 Jan 2020Evening ShiftChemistryRedox ReactionsActual

Consider the following reactions: NaCl + K 2 Cr 2 O 7 + H 2 SO 4 Conc. → A + side products A + N a O H → B + side products B + H 2 S O 4 dilute + H 2 O 2 → C + side products The sum of the total number of atoms in one molecule each of A , B and C is ________

Correct answer

0

Step-by-step solution

A = C r O 2 C l 2 B = N a 2 C r O 4 C = C r O 5 Chromyl chloride CrO 2 Cl 2 can be prepared by the reaction of potassium chromate or potassium dichromate with hydrogen chloride in the presence of sulfuric acid, followed by distillation. The sulfuric acid serves as the dehydration agent.

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