Experiment No 7 : To Identify the given organic drug D4 by systematic Qualitative Analysis.


Pharmaceutical Chemistry d pharma experiments
Experiment No 7

Questions

1. What is the theory of Lassaigne's test?

2. Name the alternative method for Lassaigne's test?

3. Why don't you do any test for "C" in detection of element in elemental analysis?

4. Give concentration of concentrated nitric acid used in laboratory.

 

Answers

Q .1. Ans The lassaigne's test is used in etemental  analysis for the qualitative determination of the 12 presence of foreign elements namely halogens. Nitrogen and sulphur in an organic compound The test involves the sample strongely then clean sodium Metal

 

Q. 2. And The -  alternative method for lassaingne e's extract is sodium fusion extract

 

Q . 4. Ans The concentrated nitric Acid used in the laborating work is 68% nitric acid by mass in Aqueous solution .