Identify four unknown metal-ion solutions
Four tubes hold Cu²⁺, Fe³⁺, Pb²⁺ and Zn²⁺ in a random order. Use NaOH, KI, KSCN and NH₃ to tell them apart.
About this experiment
| Subject | Chemistry |
|---|---|
| Class | 12 |
| Unit | 13. NEET / JEE Practice Labs (Class XII) |
| Level | NEET level |
| Access | Included in a PractiSci plan |
What you do in the lab
Change the controls and watch the chemistry behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.
Topics: chemistry · NEET / JEE Practice Labs (Class XII)
More from this unit
- Identify a primary, a secondary and a tertiary amine
- Amphoteric hydroxides of Al³⁺, Cr³⁺ and Zn²⁺
- Identify phenol, aniline and ethanol
- Autocatalysis: Mn²⁺ speeds up KMnO₄ + oxalic acid
- Identify glycine, a protein, glucose and sucrose
- Boiling-point elevation: NaCl vs glucose and the van 't Hoff factor
- Calcium oxalate: the confirmatory test for Ca²⁺
- Identify glucose, fructose, sucrose and starch