Surface Chemistry
Which of the following catalyst is used in contact process for manufacture of $$H_{2}SO_{4}$$?
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Multiple Choice
Choose the correct reason(s) for the stability of the lyophobic colloidal particles.
APreferential adsorption of ions on their surface from the solution
Correct Answer
BPreferential adsorption of solvent on their surface from the solution
CAttraction between different particles having opposite charges on their surface
DPotential difference between the fixed layer and the diffused layer of opposite charges around the colloidal particles
Correct Answer
Solution
Lyophobic colloids are stable in nature. It is due to the preferential adsorption of ions on their surface from the solution. The repulsion between the particles is carrying the same charge keeps them separated. The particles will not come close together to form large particles that will precipitate out.
The potential difference between the fixed layer and the diffused layer of opposite charges are around the colloidal particles to make a lyophobic solution stable.
Hence, option A and D are correct.
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