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

Gold dissolves in aqua-regia forming:

A
Auric chloride
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Aurous chloride
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
Chloroauric acid
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
Aurous nitrate
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C Chloroauric acid
Aqua regia is the mixture of concentrated hydrochloric acid and concentrated nitric acid in `1:3` ratio.

Gold dissolves in aqua-regia as,
`6HCl+3HNO_3 \rightarrow 2NO+4H_2O+3Cl_2`

2Au+11HCl+3HNO32HAuCl4(chloroauric acid)+3NOCl+6H2O

Au+4HCl+HNO3H[AuCl4](chloroauric acid)+2H2O+NO

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