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Select the alkyne listed below that, upon treatment with ozone followed by water, would not produce carbon dioxide and a carboxylic acid as the final products?
O 1-Pentyne
O Propyne
O 1-Butyne
O 1-Hexyne
O Ethyne

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Answer:

The only exception is Ethyne

Explanation:

Homologous members of alkynes formed ozonide and when treated with ozone and water, then decomposed to form ketones which are then oxidized to carbon dioxide and carboxylic acids.

Ethyne( Acetylene) is an exception as it gives glyoxal as well as formic acid on reacting with ozone.

C2H2 + O3 ==> OCHCHO + HCO2H

Therefore, Ethyne is the only exception.

pstnonsonjoku

The only alkyne that does not yield carbon dioxide and a carboxylic acid is ethyne.

The ozonolysis of alkynes is one of the major reaction of the alkynes. The process of ozonolysis yields  carbon dioxide and a carboxylic acid  and can be used to deduce the structure of an alkyne.

The ozonolysis of ethyne proceeds as follows;

C2H2 + O3 ==> OCHCHO + HCO2H hence it does not produce carbon dioxide and a carboxylic acid and is the exception to the rule.

Learn more about ozonolysis: https://brainly.com/question/953809

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