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NEET UG CHEMISTRY MCQ: P-BLOCK ELEMENTS

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Analyzing +4 | -1
Assertion : When a metal is treated with conc. HNO3{HNO}_3 it generally yields a nitrate, NO2{NO}_2 and H2O{H}_2 {O}.

Reason : Conc. HNO3{HNO}_3 reacts with metal and first produces a metal nitrate and nascent hydrogen. The nascent hydrogen then further reduces HNO3{HNO}_3 to NO2{NO}_2.
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Correct option: A
Assertion is correct, reason is correct; reason is a correct explanation for assertion.
Option A is correct because both the assertion and the reason are correct, and the reason correctly explains the assertion. Concentrated HNO3{HNO}_3 reacts with metals to form metal nitrates, NO2{NO}_2, and H2O{H}_2{O}.

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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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