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Aniline diazotised at 273 K and then warmed with water: product

The same question, asked 3 times: 11 May 2024 S2, 12 May 2024 S2, 22 Apr 2025 S2. Every wording below, oldest first.

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  1. Question 1

    11 May 2024 S2

    90
    If Aniline →(i) NaNO2+HCl, 273 K→(ii) H2O, Δ\xrightarrow{(i)\,\text{NaNO}_2+\text{HCl},\,273\text{ K}}\xrightarrow{(ii)\,\text{H}_2\text{O},\,\Delta} product. Identify the product of above reaction.

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  2. Question 2

    12 May 2024 S2

    78
    Identify product B in the following reaction: Aniline →NaNO2+HCl,273K\xrightarrow{NaNO_2+HCl, 273K} A →H2O,Δ\xrightarrow{H_2O, \Delta} B + N₂↑

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  3. Question 3

    22 Apr 2025 S2

    93
    Identify product ' B ' in the following sequence of reaction. Aniline →273 KNaNO2+HClA→ΔH2OB+N2↑\xrightarrow[273\text{ }K]{NaNO_{2}+ HCl}A\xrightarrow[\Delta]{H_{2}O}B +N_{2}\uparrow

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