Question
Write the principle of solvent extraction and explain the process with labelled diagram.
✓
Answer
Principle: Extraction of compound takes place based on the difference in solubility of compound in two liquids.
- In this process, the solute distributes itself between two immiscible liquids. From the aqueous phase the solute gets extracted in the organic phase.
- On shaking for a few times with small volumes of organic phase, most of the solute gets extracted into the organic phase.
- Then solute is then recovered from organic solvent either by evaporation of organic solvent or distillation.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain briefly London dispersion forces.
Using oxidation number concept, identify the redox reactions, identify oxidizing and reducing agents in case of redox reactions.
Explain graphically the effect of the following factors on the adsorption of gases by solids.
i. Temperature of the adsorbent surface
ii. Pressure of the gas (adsorbate)
i. Temperature of the adsorbent surface
ii. Pressure of the gas (adsorbate)
Explain the following steps with respect to the process of crystallization.
i. Preparation of a saturated solution
ii. Hot filtration
iii. Cooling of the filtrate
iv. Filtration
i. Preparation of a saturated solution
ii. Hot filtration
iii. Cooling of the filtrate
iv. Filtration
Calculate the amount of lime $Ca(OH)_2,$ required to remove hardness of $50,000 L$ of well water which has been found to contain $1.62 g$ of calcium bicarbonate per $10 L.$
→Calculate the number of moles and molecules of ammonia $(NH_3)$ gas in a volume $67.2 \ dm^3$ of it measured at $STP.$
→Explain in brief: Use of graphs in analytical chemistry.
What are the two methods of representing electronic configuration of an atom?
Explain in short:
$i.$ Positive resonance $(+R)$ effect
$ii.$ Negative resonance $(-R)$ effect
→$i.$ Positive resonance $(+R)$ effect
$ii.$ Negative resonance $(-R)$ effect
Explain the construction of simple distillation unit using neat labelled diagram.