Match the following :
Test/Method Reagent (i) Lucas Test (a) \(\mathrm{C_6H_5SO_2Cl}\)/ aq. KOH (ii) Dumas method (b) \(\mathrm{HNO_3}\)/ \(\mathrm{AgNO_3}\) (iii) Kjeldahl's method (c) \(\mathrm{CuO/CO_2}\) (iv) Hinsberg test (d) Conc. HCl and \(\mathrm{ZnCl_2}\) (e) \(\mathrm{H_2SO_4}\)
| Test/Method | Reagent |
| (i) Lucas Test | (a) \(\mathrm{C_6H_5SO_2Cl}\)/ aq. KOH |
| (ii) Dumas method | (b) \(\mathrm{HNO_3}\)/ \(\mathrm{AgNO_3}\) |
| (iii) Kjeldahl's method | (c) \(\mathrm{CuO/CO_2}\) |
| (iv) Hinsberg test | (d) Conc. HCl and \(\mathrm{ZnCl_2}\) |
| (e) \(\mathrm{H_2SO_4}\) |
Show Hint
- (i)-(b), (ii)-(d), (iii)-(e), (iv)-(a)
- (i)-(d), (ii)-(c), (iii)-(e), (iv)-(a)
- (i)-(b), (ii)-(a), (iii)-(c), (iv)-(d)
- (i)-(d), (ii)-(c), (iii)-(b), (iv)-(e)
The Correct Option is B
Solution and Explanation
(ii) Dumas method (estimation of nitrogen) heats the compound with CuO in an atmosphere of \(\mathrm{CO_2}\) : (c).
(iii) Kjeldahl's method digests the compound with conc. \(\mathrm{H_2SO_4}\) to convert N to \(\mathrm{(NH_4)_2SO_4}\) : (e).
(iv) Hinsberg test (to distinguish 1\(^\circ\), 2\(^\circ\), 3\(^\circ\) amines) uses \(\mathrm{C_6H_5SO_2Cl}\)/aq. KOH : (a).
Thus (i)-(d), (ii)-(c), (iii)-(e), (iv)-(a).
Answer: (2) (i)-(d), (ii)-(c), (iii)-(e), (iv)-(a)
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