Explain the reason for the fusion of an organic compound with metallic sodium for testing nitrogen, sulphur and halogens.
1 Answers
Talk Doctor Online in Bissoy App
The compound formed in the positive test for nitrogen with the Lassaigne solution of an organic compound is
(a) : 3Na4[Fe(CN)6] + 4Fe3+ → Fe4 [Fe(CN)6]3 + 12Na+ Prussian blue
1 Answers 1 views
Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei
(4) Syngamy and triple fusion
1 Answers 1 views
Assertion (A) : Sodium metal is stored under kerosene. Reason (R) : Metallic sodium melts when exposed to air.
This question you get from where ?
1 Answers 3 views
Assertion (A) : Sodium metal is stored under kerosene. Reason (R) : Metallic sodium melts when exposed to air.
1 Answers
1 views
Why is an organic compound fused with Sodium for testing nitrogen,halogens and sulphur ?
On fusing with sodium metal the elements presents in an organic compounds are converted in to ionic compounds of sodium which are water soluble which can be filtered and detected...
1 Answers 1 views
In Dumas’ method for estimation of nitrogen, 0.3 g of an organic compound gave 50 mL of nitrogen collected at 300K temperature
Volume of nitrogen collected at 300K and 715mm pressure is 50 mL Actual pressure = 715-15 =700 mm Volume of Nitrogen at STP=273*700*50/300*760 =41.9 ml 22400 ml of Nitrogen at STP weighs = 28...
1 Answers 1 views
During estimation of nitrogen present in an organic compound by Kjeldahl’s method,
1M of 10 mL H2SO4=1M of 20 mL NH3 1000 mL of 1M ammonia contains 14 g nitrogen 20 mL of 1M ammonia contains14*20/1000 g nitrogen Percentage of nitrogen = 14*20*100/ 1000 *0.5...
1 Answers 1 views
Differentiate between the principle of estimation of nitrogen in an organic compound by
Dumas method: The nitrogen containing organic compound, when heated with copper oxide in an atmosphere of carbon dioxide, yields free nitrogen in addition to carbon dioxide and water. CxHyNz + (2x...
1 Answers 3 views
In Dumas’ method for estimation of nitrogen, 0.3g of an organic compound gave 50mL
Volume of nitrogen collected at 300K and 715mm pressure is 50 mL Actual pressure = 715-15 =700 mm Volume of nitrogen at STP =273 *700 *50/300 *760 = 41.9 mL 22,400 mL of N2...
1 Answers 1 views
In the lassaigne,s test for nitrogen in an organic compound,the Prussian blue colour is obtained due to formation of
b) Fe4[fe(CN)6]3
1 Answers 1 views