wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

When chlorine gas is passed through an aqueous solution of a potassium halide in the presence of chloroform, a violet coloration is obtained. On passing more of chlorine water, the violet color is disappeared and the solution becomes colorless. This test confirms the presence of __________in aqueous solution.

A
chlorine
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
fluorine
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
bromine
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
iodine
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D iodine
When this reagent is added dropwise to a solution of an iodide, free iodine is liberated, which colours the solution brown and on shaking with CS2,CHCl3 or CCl4 it dissolves in organic layer forming a violet solution, which settles below the aqueous layer.
2KI+Cl2I2+KCl
I2+CHCl3violet solution

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Chemical Reactions of Halogens
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon