Verified Solution • 2025–26 Session
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QJEEM21Ch0e9e: JEE Main 2021 Chemistry - Class 12 JEEM21Ch0e9e Solution: Match List - I with List - II : Choose the most appropriate…
Match List - I with List - II :
Choose the most appropriate answer from the options given below.
Choose the most appropriate answer from the options given below.
Multiple Choice Options
- A (a)-(i), (b)-(iii), (c)-(ii), (d)-(iv)
- B (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii)
- C (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)
- D (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)
Step-by-Step Verified Solution
In reaction (i), Au (sol) is formed by reduction of AuCl3, so the chemical method of preparation is “Reduction”.
In reaction (ii), As2S3 (sol) is formed by double decomposition, so the chemical method of preparation is “Double decomposition”.
In reaction (iii), S (sol) is formed by oxidation of H2S, so the chemical method of preparation is “Oxidation”.
In reaction (iv), Fe(OH)3(sol) is formed by hydrolysis of FeCl3 so the chemical method of preparation is “Hydrolysis”.
In reaction (ii), As2S3 (sol) is formed by double decomposition, so the chemical method of preparation is “Double decomposition”.
In reaction (iii), S (sol) is formed by oxidation of H2S, so the chemical method of preparation is “Oxidation”.
In reaction (iv), Fe(OH)3(sol) is formed by hydrolysis of FeCl3 so the chemical method of preparation is “Hydrolysis”.