Question:
Match the following :
Correct Option: , 3
Solution:
(I) Lucas reagent - Conc. $\mathrm{HCl} / \mathrm{ZnCl}_{2}$
(II) Dumas method $-\mathrm{CuO} / \mathrm{CO}_{2}$
(III) $\mathrm{Kjeldahl's~method~-~} \mathrm{H}_{2} \mathrm{SO}_{4}$
(IV) Hinsberg test $-\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{SO}_{2} \mathrm{Cl} / \mathrm{aq} . \mathrm{KOH}$