Match the following: Test / Method (i) Lucas Test (ii) Dumas method (iii) Kjeldahl's method (iv) Hinsberg Test Reagent (a) \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{SO}_{2} \mathrm{Cl} /\) aq. KOH (b) \(\mathrm{HNO}_{3} / \mathrm{AgNO}_{3}\) (c) \(\mathrm{CuO} / \mathrm{CO}_{2}\) (d) Conc. HCl and \(\mathrm{ZnCl}_{2}\) (e) \(\mathrm{H}_{2} \mathrm{SO}_{4}\)

(C) (i)-(d), (ii)-(c), (iii)-(e), (iv)-(a)

(A) (i)-(d), (ii)-(c), (iii)-(b), (iv)-(e)

(B) (i)-(b), (ii)-(d), (iii)-(e), (iv)-(a)

(D) (i)-(b), (ii)-(a), (iii)-(c), (iv)-(d)

JEE Main · 2020 · 06 Sep 2020 · Shift 2 · Practical and Analytical Chemistry

Match the following:

Test / Method
(i) Lucas Test
(ii) Dumas method
(iii) Kjeldahl's method
(iv) Hinsberg Test

Reagent
(a)

C_{6} H_{5} SO_{2} Cl /

aq. KOH
(b)

HNO_{3} / AgNO_{3}

(c)

CuO / CO_{2}

(d) Conc. HCl and

ZnCl_{2}

(e)

H_{2} SO_{4}

Answer: (C)

The Lucas test tells apart primary, secondary and tertiary alcohols using concentrated

HCl

with

ZnCl X_{2}

. The Dumas method estimates nitrogen by oxidising the compound over

CuO

and measuring the

N X_{2}

set free. Kjeldahl's method estimates nitrogen through digestion in concentrated

H X_{2} SO X_{4}

. The Hinsberg test distinguishes amine classes with benzenesulfonyl chloride,

C X_{6} H X_{5} SO X_{2} Cl

, in aqueous

KOH

. So Lucas pairs with

HCl / ZnCl X_{2}

, Dumas with

CuO

, Kjeldahl with

H X_{2} SO X_{4}

, and Hinsberg with

C X_{6} H X_{5} SO X_{2} Cl

JEE Main · 2020 · 06 Sep 2020 · Shift 2 · Single correct option