See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

  2 2 7 2 2 3 8 2 red brown solid K Cr O 7H O 4KOH 2K CrO 9H O       2 2 7 2 2 2 4 5 2 4 2 blue K Cr O H O H SO 2CrO K SO 5H O                           4 2 4 2 2 4 6 6 triatomioc gas dil. 3K Fe CN 6H SO 12HCN Fe Fe CN 6K SO     4 2 4 2 7 4 2 green oily 2KMnO Conc. 2H SO cold Mn O 2KHSO H O     SECTION – B