JEE Main 2017 — Surface Chemistry Question with Solution
From: JEE Main 2017 (Online) 8th April Morning Slot
Question
Among the following, correct statement is :
Choose an option
Show full solutionCorrect option: D
Correct answer
DOne would expect charcoal to adsorb chlorine more than hydrogen sulphide.
Step-by-step explanation
(a) Brownian motion caused by the bombardment of the particles by molecules of the median. In smaller particle the bombardment is not effective enough so that it can change it's direction and perform zig zag motion. But for bigger particle zig zag motion happens as bombardment is effective.
(b) Inorganic sols are lyophobic. Metal sulphates are inorganic sols so it is lyophotic.
(c) Hardly Schulze does not depends on the size of the ion it depends on the size of the ion it depends on the charge on the ion.
(d) Molar mass of Cl2 is 71 and molar mass of H2S is 34 and in both the molecule Nanderwaal force of attraction present. As Cl2 has more mass than H2S So it's vanderwall force of attraction will be more and tendency to melt will also be more. So, Cl2 will get easily absorbed.
(b) Inorganic sols are lyophobic. Metal sulphates are inorganic sols so it is lyophotic.
(c) Hardly Schulze does not depends on the size of the ion it depends on the size of the ion it depends on the charge on the ion.
(d) Molar mass of Cl2 is 71 and molar mass of H2S is 34 and in both the molecule Nanderwaal force of attraction present. As Cl2 has more mass than H2S So it's vanderwall force of attraction will be more and tendency to melt will also be more. So, Cl2 will get easily absorbed.
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This is a previous-year question from JEE Main 2017, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.