Verified Solution • 2025–26 Session
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QJEEM17Ch61a2: JEE Main 2017 Chemistry - Class 12 JEEM17Ch61a2 Solution: Among the following, correct statement is :
Among the following, correct statement is :
Multiple Choice Options
- A Brownian movement is more pronounced for smaller particles than for bigger–particles
- B Sols of metal sulphides are lyophilic.
- C Hardy Schulze law states that bigger the size of the ions, the greater is its coagulating power.
- D One would expect charcoal to adsorb chlorine more than hydrogen sulphide.
Step-by-Step Verified Solution
(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.