CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
Question

Native silver metal forms a water-soluble complex with a dilute aqueous solution of NaCN in the presence of:

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

The correct option is B Oxygen
Native (impure) metal is leached with NaCN in the presence of O2 to form a [Ag(CN)2] complex.

From this complex, silver is precipitated out by using metallic Zinc dust.

flag
Suggest Corrections
thumbs-up
1
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Smelting
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon