Q.

Which of the following is the structural formula of ethyne?


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a

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b

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c

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d

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answer is A.

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Detailed Solution

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H-CC-H is the structural formula of ethyne.
Ethyne is an organic compound with the chemical and molecular formula C2H2, also known as acetylene and is the simplest alkyne. This chemical composition only contains hydrogen and carbon atoms and is called hydrocarbon. According to the molecular formula, we know that ethyne contains 2 carbon atoms and 2 numbers of hydrogen atoms. As carbon has four valencies and one carbon can form four bonds, the two carbon atoms are bonded with triple bonds. So, the structural formula of ethyne is
 HC  CH.
 
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