Which one of the following reactions has the highest atom economy in the production of an organic molecule?
A - VCE - SSCE Chemistry - Question 27 - 2022 - Paper 1
Question 27
Which one of the following reactions has the highest atom economy in the production of an organic molecule?
A. complete combustion of propylene, C₃H₆
B. reaction o... show full transcript
Worked Solution & Example Answer:Which one of the following reactions has the highest atom economy in the production of an organic molecule?
A - VCE - SSCE Chemistry - Question 27 - 2022 - Paper 1
Step 1
A. complete combustion of propylene, C₃H₆
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Answer
The complete combustion of propylene results in the production of carbon dioxide and water. This reaction generally has low atom economy as most of the reactants are converted to non-organic products.
Step 2
B. reaction of iodine, I₂, with propane, C₃H₈
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Answer
This reaction typically leads to the formation of organoiodine compounds. Because the iodine is utilized directly in the reaction, the atom economy is higher than that of complete combustion.
Step 3
C. reaction of bromine, Br₂, and propene, C₃H₆
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Answer
The addition of bromine to propene results in the formation of vicinal dibromides. This reaction has better atom economy since all reactants convert to organic products without generating waste.
Step 4
D. formation of a dipeptide from alanine, C₃H₇NO₂
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Answer
The formation of a dipeptide from alanine involves combining two molecules of alanine to form a larger molecule with the release of water. This reaction has a good atom economy as it's effectively utilizing both reactant molecules.
