The number and type of bonds in $C_2^{2 - }$ ion in $CaC_2$ are

  • [JEE MAIN 2014]
  • A

    One $\sigma $ bond and one $\pi  - $ bond

  • B

    One $\sigma $ bond and two $\pi  - $ bond

  • C

    Two $\sigma $ bond and two $\pi  - $ bond

  • D

    Two $\sigma $ bond and one $\pi  - $ bond

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  • [AIPMT 2005]