The p-Block Elements

JEE Advanced · Chemistry · 62 past questions

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1. Q3 2025 Paper 1

   The heating of NH$_4$NO$_2$ at 60–70 °C and NH$_4$NO$_3$ at 200–250 °C is associated with the formation of…

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2. Q6 2024 Paper 1

   At room temperature, disproportionation of an aqueous solution of in situ generated nitrous acid (HNO$_2$)…

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3. Q18 2020 Paper 2

   Choose the correct statement(s) among the following.

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4. Q22 2018 Paper 1

   The compound(s) which generate(s) $N_2$ gas upon thermal decomposition below $300^\circ C$ is (are)

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5. Q23 2018 Paper 1

   Based on the compounds of group 15 elements, the correct statement(s) is (are)

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6. Q31 2017 Paper 2

   Upon heating $\mathrm{KClO_3}$ in the presence of catalytic amount of $\mathrm{MnO_2}$, a gas $\mathbf{W}$ is…

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7. Q33 2016 Paper 2

   The nitrogen containing compound produced in the reaction of $\mathrm{HNO_3}$ with $\mathrm{P_4O_{10}}$

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8. Q39 2014 Paper 2

   Under ambient conditions, the total number of gases released as products in the final step of the reaction… (with a figure)

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9. Q40 2013 Paper 1

   Concentrated nitric acid, upon long standing, turns yellow-brown due to the formation of

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10. Q45 2011 Paper 1

    Extra pure N$_2$ can be obtained by heating

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11. Q51 2009 Paper 2

    The nitrogen oxide(s) that contain(s) N-N bond(s) is(are)

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12. Q56 2008 Paper 1

    Paragraph for Question Nos. 64 to 66…

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13. Q57 2008 Paper 1

    Paragraph for Question Nos. 64 to 66…

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