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Match the following : Test/Method — Reagent (i) Lucas Test — (a) C6H5SO2Cl/aq. KOH (ii) Dumas method — (b) HNO3/AgNO3 (iii) Kjeldahl's method — (c) CuO/CO2 (iv) Hinsberg Test — (d) Conc. HCl and ZnCl2 (e) H2SO4

1. (1) (i)-(d), (ii)-(c), (iii)-(e), (iv)-(a)
2. (2) (i)-(b), (ii)-(d), (iii)-(e), (iv)-(a)
3. (3) (i)-(d), (ii)-(c), (iii)-(b), (iv)-(e)
4. (4) (i)-(b), (ii)-(a), (iii)-(c), (iv)-(d)

Correct answer: (1) (i)-(d), (ii)-(c), (iii)-(e), (iv)-(a)

Solution

The Lucas Test uses concentrated HCl and ZnCl2 to differentiate between primary, secondary, and tertiary alcohols. The Dumas method employs copper oxide (CuO) and carbon dioxide (CO2) for nitrogen determination in organic compounds. Kjeldahl's method involves sulfuric acid (H2SO4) for nitrogen quantification, while the Hinsberg Test utilizes benzenesulfonyl chloride (C6H5SO2Cl) with aqueous KOH to identify primary and secondary amines.

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