JEE Main 2017 · 9 Apr · Shift 1 · Chemistry Q50

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ChemistrySingle correct+4 / -1Question 50 of 90

$\ce{[Co2(CO)8]}$ displays :

one Co−Co bond, six terminal CO and two bridging CO

one Co−Co bond, four terminal CO and four bridging CO

no Co−Co bond, six terminal CO and two bridging CO

no Co−Co bond, four terminal CO and four bridging CO

Answer and worked solution

Official answer: A

In its solid-state structure $\ce{Co2(CO)8}$ has a Co-Co bond bridged by two CO groups, and each Co carries three terminal CO: six terminal and two bridging.

Topics:Nomenclature

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JEE Main 2017 · 9 Apr · Shift 1, Chemistry question 50