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

Which one of the following procedures is correct to detect the acidic nature of SO2 gas?
(1) Insert wet blue litmus paper in a gas jar filled with SO2 gas
(2) Insert wet red litmus paper in a gas jar filled with SO2 gas
(3) Insert dry blue litmus paper in a gas jar filled with SO2 gas
(4) Insert dry red litmus paper in the gas jar filled with SO2 gas

Open in App
Solution

To detect the acidic nature of sulphur dioxide, we will place a wet blue litmus paper inside the gas jar. So, that wet litmus paper traps the gaseous SO2 and converts the blue litmus to red.
We use wet litmus paper because when gas comes out, it can tested for acidity when they react with water in the litmus paper and form ions.

Hence, the correct answer is option 1.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Introduction to Qualitative Analysis
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon