In Kjeldahls method of estimation of nitrogen, \( \mathrm{K}_{2} \mathrm{SO}_{4} \) acts as
(a) ... VIDEO
In Kjeldahls method of estimation of nitrogen, \( \mathrm{K}_{2} \mathrm{SO}_{4} \) acts as
(a) catalytic agent
(b) boiling point elevator
(c) hydrolysis agent
(d) oxidizing agent
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live
Other Videos By PW Solutions 2023-07-10 When pieces of human hair are heated strongly with sodalime, smell of ammonia can be detected. W... 2023-07-10 In Lassaignes test which of the following organic compound will produce a blood red colour when ... 2023-07-10 Which of the following statements is wrong?
(a) in the estimation of carbon, an organic compound... 2023-07-10 An organic compound on heating with \( \mathrm{CuO} \) produces \( \mathrm{CO}_{2} \) but not wa... 2023-07-10 When thiourea is heated with metallic sodium, the compound formed is/are
(a) \( \mathrm{Na}_{2} ... 2023-07-10 Sorbic acid consists of \( \mathrm{C}=64.3 \% . \mathrm{H}=7.2 \% \) and \( 28.5 \% \) oxygen. F... 2023-07-10 A mixture of benzene and aniline can be separated by
(a) alcohol
(b) \( \mathrm{NaOH} \)
(c) \( ... 2023-07-10 During formation of sodium extract, generally the substance that ignites is
(a) \( \mathrm{Na} \... 2023-07-10 Which is incorrect for paper chromatography
(a) It is a part of partition chromatography.
(b) It... 2023-07-10 Paper chromatography is an example of:
(a) Column chromatography
(b) Adsorption chromatography
(... 2023-07-10 In Kjeldahls method of estimation of nitrogen, \( \mathrm{K}_{2} \mathrm{SO}_{4} \) acts as
(a) ... 2023-07-10 Which of the following will not be soluble in sodium hydrogen carbonate?
(a) 2, 4, 6-trinitrophe... 2023-07-10 A miscible mixture of \( \mathrm{C}_{6} \mathrm{H}_{6}+\mathrm{CHCl}_{3} \) can be separated by
... 2023-07-10 In Carius method of estimation of halogen, \( 0.15 \mathrm{~g} \) of an organic compound gave \(... 2023-07-10 In Lassaignes solution, pink/violet colour is produced when sodium nitroprusside solution is add... 2023-07-10 The sodium extract of an organic compound on treatment with \( \mathrm{FeSO}_{4} \) solution, \(... 2023-07-10 \( 0.765 \mathrm{~g} \) of an acid gives \( 0.535 \mathrm{~g} \) of \( \mathrm{CO}_{2} \) and \(... 2023-07-10 The organic compound on boiling with \( \mathrm{HNO}_{3} \) and addition of ammonium molybdate s... 2023-07-10 Comprehension
The structures of two compounds
(I) and (II) are given below. Which of the given s... 2023-07-10 If on adding \( \mathrm{FeCl}_{3} \) solution to acidified Lassaignes solution, a blood red colo... 2023-07-10 \( 2.79 \mathrm{~g} \) of an organic compound when heated in Carius tube with conc. \( \mathrm{H...