Question

1. List at least six industrially important adsorbents (1.5 mark, K&U 2.2)

2. Select two adsorbents from task 1 and prepare a table in which you compare their properties (hydrophobic/hydrophilic, pore diameter, porosity, density, surface area, capacity for H2O). (1.5

   marks, S&E 2.4)

Answer 1

ANSWER.

List of adsorbents .

Task-1

1.There are various types of adsorbents used in industries.they are listed below.

1. Alumina
2. Sillica gel
3. Activated Carbon.
4. Molecular sieve.
5. Charcoal.
6. Polymeric adsorbents
7. Synthetic resins.

2.

Sr no.	Properties	activated carbon	sillica gel
1)	hydro philic/phobic	Hydrophilic.	Hydrophilic
2)	pore diameter	2-3 mm	5-50 nm
3)	porosity	70%	80%
4)	density	0.820 gm/ml	0.45 g/ml
5)	surface area	800 m²/g	500 m²/g
6)	capacity for H2O	10-30 gm H2O/gm of adsorbent.	30-40 gm of water /per gm of adsorbent

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