AIIMS 2003
- Exam
- AIIMS
- Year
- 2003
- Subject
- Chemistry
- Chapter
- General Principles and Processes of Isolation of Metals
AIIMS 2003 · Chemistry · General Principles and Processes of Isolation of Metals
The compound used for gravimetric estimation of copper(II) is
The compound used for gravimetric estimation of copper(II) is
Options
- A
- B
- C\mathrm{I}
- D.
Correct answer
A.
Step-by-step solution
Copper thiocyanate is used to estimate copper gravimetrically.
2 \mathrm{Cu}^{2+}+\mathrm{SO}}_{4}{ }^{2-}+2 \mathrm{SCN}^{-}+\mathrm{H}}_{2} 2 \mathrm{CuSCN}+\mathrm{H}}_{2} \mathrm{SO}}_{4}