logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
0 votes

Concentrated nitric acid is added before proceeding to test for group III members. This is to

(a) Oxidise any remaining $H_2S$
(b) Convert ferrous ions to ferric ions
(c) Form nitrates which gives grannular precipitate
(d) Increase ionisation of ammonium hydroxide
Can you answer this question?
 
 

1 Answer

0 votes
Answer: Convert ferrous ions to ferric ions
 
To oxidise ferrous ion into ferric ion otherwise $Fe^{2+}$ is not completely precipitated as $Fe(OH)_2$, as ferrous hydroxide is more soluble in water than $Fe(OH)_3$.
answered Feb 1, 2014 by mosymeow_1
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...