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( K_ 2 C r_ 2 O_ 7 + 6 F e S O_ 4 + 7 H_ 2 S O_ 4 to 3 F e_ 2 left ( S O_ 4 right )_ 3 + K_ 2 S O_ 4 + C r_ 2 left ( S O_ 4 right )_ 3 + 7 H_ 2 O ) [FeSO 4 এর আণবিক ভর 152, K 2 Cr | Suva Ai