MCQ
In Kjeldahl’s method, the nitrogen present in the organic compound is quantitatively converted into
- AGaseous ammonia
- BAmmonium sulphate
- CAmmonium phosphate
- ✓Ammonia
✓
Answer
Correct option: D.
Ammonia
d
(d) In Kjeldahl’s method, the nitrogen is estimated in the form of ammonia, which is obtained by heating compounds with $NaOH$.
(d) In Kjeldahl’s method, the nitrogen is estimated in the form of ammonia, which is obtained by heating compounds with $NaOH$.
$C{H_3}CON{H_2} + NaOHC \overset {\Delta} \longrightarrow {H_3}COONa + {H_2}O + N{H_3}$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In the following structure, the double bonds are marked as $I, II, III$ and $IV$ Geometrical isomerism is not possible at site $(s)$
→The heat measured for a reaction in bomb calorimeter is :
In Duma's method of estimation of nitrogen $0.35\,g$ of an organic compound gave $55\,ml$ of nitrogen collected at $300\,K$ temp. and $715\,mm$ pressure. The percentage of nitrogen in compound is (aqueous tension at $300\,K = 15\,mm$)
→In atom, an electron is moving with a speed of 600m/ s with an accuracy of 0.005%. Certainty with which the position of the electron can be located is:
(h = 6.6 × 10-34kg/ m2s-1, mass of electron, em = 6.6 × 10-31kg)
(h = 6.6 × 10-34kg/ m2s-1, mass of electron, em = 6.6 × 10-31kg)
$1\, cc$ of $0.1\, M$ $HCl$ is added to $999\, cc$ solution of $0.1\, N$ $NaCl$. The $pH$ of resulting solution will be
→What is the shortest wavelength for Paschen series of $Li^{2+}$ ion
→Which of the following may act as an oxidising and reducing agent both?
The $\Delta H_f$ for $CO_{2(g)},\,CO_{(g)}$ and $H_2O_{(g)}$ are $-393.5,\,-110.5$ and $-241.8\,KJ$ respectively. The standard enthalpy change for this reaction is
→$C{O_{2(g)}} + {H_{2(g)}} \to C{O_{(g)}} + {H_2}{O_{(g)}}$ .....$KJ$
$XY_2$ dissociates $X{Y_2}(g)\,\rightleftharpoons \,XY{\kern 1pt} (g)\, + \,Y\,(g)$ When the initial presure of $XY_2$ is $600\,mm\,Hg,$ the total equilibrium pressure is $800 \,mm\,Hg.$ Calculate $K$ for the reaction. Assuming that the volume of the system remains unchanged.
→The compound whose $0.1 \,M$ solution is basic is
→