Question

Which of the following posses are based on adsorption?
a. Separation of noble gases using coconut charcoal
b. Thin layer chromatography
c. Concentration of sulphide ore by forth floatation
d. Reduction of ethene using Ni-Al alloy/NaOH
e. Formation of delta where the river meets the sea
(1) a, b & c but not d &e (2) c, d & e but not a & b
(3) a, d & e but not b&c (4) a, b, c & d but not e
GIVE RELEVANT ANSWERS ONLY WITH EXPLAINATION ​

Answer 1

Answer:

4th option

Explanation:

a)Dewars adsorption on activated

coconut charcoal method can

separate mixture of noble gases

b)Thin layer chromatography is based on the principle of adsorption chromatography. Adsorption refers to a phenomenon where a substance accumulates on the surface of another material, forming a thin layer.

c) In froth floatation process sulphide ore is shaken with pine oil and water, the ore particles are adsorbed on froth that floats and the gangue particles settle down in tank. Thus, role of adsorption in froth floatation process can be understood

d) Raney nickel also called spongy nickel is an absorbent!

e) It is due to coagulation process

Hope this much explanation helps u!!