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NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

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Reactions of HNO3\mathrm{HNO}_3 (conc.) with I,S,P\mathrm{I}, \mathrm{S}, \mathrm{P} and C\mathrm{C} gives respectively:
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Correct option: A
HIO3,H2SO4,H3PO4,CO2\mathrm{HIO}_3, \mathrm{H}_2 \mathrm{SO}_4, \mathrm{H}_3 \mathrm{PO}_4, \mathrm{CO}_2
Option A (HIO3,H2SO4,H3PO4,CO2\mathrm{HIO}_3, \mathrm{H}_2 \mathrm{SO}_4, \mathrm{H}_3 \mathrm{PO}_4, \mathrm{CO}_2) is correct because concentrated nitric acid oxidizes iodine to iodic acid, sulfur to sulfuric acid, phosphorus to phosphoric acid, and carbon to carbon dioxide.

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The source of most of the noble gases is: Which possesses least stable covalent P-H bond? Which gas is filled in electric bulbs/tubes? The correct order of the oxidation states of nitrogen in NO, NO2, NO2NO,\,N{O_2},\,N{O_2} and N2O3{N_2}{O_3} is Which of the following is not an acidic oxide? On heating with NaOH\mathrm{NaOH} solution and zinc, NaNO3\mathrm{NaNO}_3 liberates a gas which can also be obtained by:
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