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Please help! The number and type of bonds between two carbon atoms in calcium carbide are

The number and type of bonds between two carbon atoms in calcium carbide are

  • Option 1)

    one sigma, one pi

  • Option 2)

    one sigma, two pi

  • Option 3)

    two sigma, one pi

  • Option 4)

    two sigma, two pi

 
Answers (1)
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As we lernt in

Carbides of Be and Al -

Liberate methane on reaction with water

- wherein

Be_{2} C+2H_{2}O\rightarrow CH_{4}+2BeO \\Al_{4}C_{3}+12H_{2}O\rightarrow 3CH_{4}+4Al (OH)_{3}

 

CaC_{2}\rightarrow Ca^{2+}+C_{2}^{2-}

^{-}C\equiv C^{-}\Rightarrow one sigma and two \pi bond. 

 


Option 1)

one sigma, one pi

This option is incorrect.

Option 2)

one sigma, two pi

This option is correct.

Option 3)

two sigma, one pi

This option is incorrect.

Option 4)

two sigma, two pi

This option is incorrect.

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