Khi cho dung dịch NaOH dư vào dung dịch K2Cr2O7 thì dung dịch tạo thành có màu: - Kim Ngan
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a 1 g sample of k2cr2o7 containing some inert material was entirely reduced with conc hcl the chlorine liberated was passed through hot solution of naoh at 80 c and it completely disproporti 86274
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