1. Tardigrade
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  3. Chemistry
  4. Following Sidwick's rule of EAN , Co ( CO ) x will be :

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Q. Following Sidwick's rule of $EAN$ , $Co ( CO )_{ x }$ will be :

Coordination Compounds

Solution:

$Co ( CO )_{x}$ will be $Co _{2}( CO )_{8}$ since it has $36 EAN$ per Co atom

$Co =27;$

$4 Co =4 \times 2;$

$Co - Co -1 e ^{-}$ each $Co$

$=36 e ^{-}$ each $Co$