an unknown solution for anions gave a colorless effervescence with dilute HCl but did not change MnCl2 in HCl to brown. what anions were proved | Cheap Nursing Papers

an unknown solution for anions gave a colorless effervescence with dilute HCl but did not change MnCl2 in HCl to brown. what anions were proved

an unknown solution for anions gave a colorless effervescence with dilute HCl but did not change MnCl2 in HCl to brown. what anions were proved absent?

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