AIIMS2014Chemistry-Aldehyde preparation
AIIMS 2014 Chemistry Aldehyde preparation MCQ Question
Type: MCQ-conceptual-Medium-Class 12
CH2 = CH2 + H2O Pd2+ → CH3CHO
A
CH3CN SnCl2/HCl → CH3CH = NH H3O+ → CH3CHO
B
CH3COCl + H2 Pd/BaSO4 → CH3CO + HCl
C
CH2 = CH2 + H2O Pd2+ → CH3CHO
D
All of the above
Correct Answer
Option C
Detailed Explanation
The correct answer is C) CH2 = CH2 + H2O Pd2+ → CH3CHO because this reaction illustrates the hydration of ethylene (CH2=CH2) in the presence of palladium(II) ions (Pd2+), leading to the formation of acetaldehyde (CH3CHO) through the addition of water. This process is a direct method for converting an alkene to an aldehyde, demonstrating the key concept of aldehyde preparation.
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