The C - C bond length is maximum in:

 

  • Option 1)

    graphite

  • Option 2)

    C_{70}

  • Option 3)

    C_{60}

  • Option 4)

    diamond

Answers (1)

Answer is Diamond 

(1) Graphic \rightarrow C_{sp^{2}} = C_{sp^{2}} (partial double bind character, Bond length= 1.41A^{\circ} )

(2) Diamond \rightarrow C_{sp^{3}} - C_{sp^{3}}(single bond, Bond length 1.51A^{\circ} )

(3) C_{60} 

               \rightarrow C_Sp^{2} ---- C_Sp^{2} (partial double Bond character, Bond length 1.38A^{\circ} & 1.43A^{\circ} )

(4) C_{70}


Option 1)

graphite

Option 2)

C_{70}

Option 3)

C_{60}

Option 4)

diamond

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