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Which of the following does not react with hydrochloric acid to give chlorine as a product?(a) KMnO4(b) MnO2(c) K2Cr2O7(d) MgI had been asked this question in an interview for internship.Enquiry is from P-Block Elements in division P-Block Elements of Chemistry – Class 12

Answer»

Right choice is (d) Mg

To elaborate: CONCENTRATED hydrochloric acid REACTS with strong oxidising agents to YIELD chlorine gas. KMNO4, MnO2, K2Cr2O7, PbO2 are examples of oxidising agents which release chlorine on reaction with hydrochloric acid.



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