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प्रश्न
\[\ce{MnO2}\], \[\ce{PbO2}\] and red lead react with \[\ce{conc. HCl}\] acid liberates \[\ce{Cl2}\].
What is the common property being shown by these metal oxides?
उत्तर
\[\ce{MnO2}\], red lead \[\ce{(Pb3O4)}\], and \[\ce{PbO2}\] are all powerful oxidizing agents that exhibit a reducing property when reacting with \[\ce{conc. HCl}\] is used to liberate \[\ce{Cl2}\] (gas), and oxidizing chemicals oxidize the \[\ce{conc. HCl}\] converts to chlorine.
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संबंधित प्रश्न
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Name the following:
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A metallic oxide which reacts with hydrochloric acid to give a coloured solution.
Select from the list given (a to e) one substances in each case which matches the description given in parts (i) to (v). (Note : Each substance is used only one in the answer)
(a) Nitroso Iron (II) Sulphate
(b) Iron (III) chloride
(c) Chromium sulphate
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(i) A compound which is deliquescent
(ii) A compound which is insoluble in cold water, but soluble in hot water
(iii) The compound responsible for the brown ring during the brown ring test of nitrate iron
(iv) A compound whose aqueous solution is neutral in nature
(v) The compound which is responsible for the green colouration when sulphur dioxide is passed through acidified potassium dichromate solution
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When barium chloride solution is added to salt solution E a white precipitate insoluble in dilute hydrochloric acid is obtained
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Write observation:
Lead nitrate solution is mixed with dilute hydrochloric acid and heated.
