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Quiz | Online MCQs Test
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Oxidation state of Cr in K2Cr2O7 is _____.
(A) 12
(B) 6
(C) 3
(D) Zero
Answer: (B) 6
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What is the maximum amount of Sodium Acetate that can dissolve in 100 gram of water at 0°C?
which of the following elements is the most metallic?