wiz-icon
MyQuestionIcon
MyQuestionIcon
11
You visited us 11 times! Enjoying our articles? Unlock Full Access!
Question

Iron nails were dipped in a solution kept in a test tube. After half an hour, it was observed that the colour of the solution has changed. The solution present in the test tube before the reaction was that of _________.

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

The correct option is D copper sulphate
Iron is more reactive than copper but less reactive than zinc and aluminium.

Hence, it will displace copper from copper sulphate solution and not zinc and aluminium from their respective solution.

The reaction will occur as follows:
Copper Sulphate(Blue)+IronIron Sulphate(Green)+Copper

So, the solution present in the test tube was copper sulphate.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Colour and state changes!
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon