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Which of the following organic compounds has same hybridization as its combustion product (CO_{2}) ?

  • Option 1)

    Ethane

  • Option 2)

    Ethyne

  • Option 3)

    Ethene

  • Option 4)

    Ethanol

 

Answers (1)

 

Combustion -

Alkane on heating in presence of air or O2 are completely oxidised to CO2 and water with evolution of large amount of heat.

- wherein

 

 \underset{Ethyne}{C_{2}H_{2}}\;+\; \frac{5}{2}O_{2}\; \longrightarrow\;2CO_{2}\;+\;H_{2}O

Hybridisation of C in H-C\equiv C-H     is sp

Hybridisation of C in O \equiv C=O     is sp

Hybridisation of C in H-\overset{H}{\overset{|}{C}}=\overset{H}{\overset{|}{C}}-H\;(Ethene)     is sp^{2} 

Hybridisation of C in H-\underset{H}{\underset{|}{\overset{H}{\overset{|}{C}}}}=\underset{H}{\underset{|}{\overset{H}{\overset{|}{C}}}}-H\;(Ethane)     is sp^{3} 


Option 1)

Ethane

This option is incorrect.

Option 2)

Ethyne

This option is correct.

Option 3)

Ethene

This option is incorrect.

Option 4)

Ethanol

This option is incorrect.

Posted by

Vakul

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