logo

Ask Questions, Get Answers

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

$[X] + H_2SO_4 \longrightarrow [Y]$ colourless with irritating smell. $[Y] + K_2Cr_2O_7 + H_2SO_4 \longrightarrow$ Green solution. [X] and [Y] are

(a) $SO_3^{2-}, SO_2$
(b) $Cl^-, HCl$
(c) $S^{2-}, H_2S$
(d) $CO_3^{2-}, CO_2$

Can you answer this question?
 
 

1 Answer

0 votes
Answer: $SO_3^{2-}, SO_2$
 
$[X]=SO_3^{2-}$ ion, $[Y]=SO_2$
$SO_3^{2-} + H_2SO_4 \longrightarrow SO_2 + H_2O + SO_4^{2-}$
$3SO_2 + K_2Cr_2O_7 + H_2SO_4 \longrightarrow K_2SO_4 + Cr_2(SO_4)_3$ (Green solution) $+ H_2O$
answered Jan 28, 2014 by mosymeow_1
edited Jan 28, 2014
 

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
...