MCQ
In carbon monoxide molecules, the carbon and the oxygen atoms are separated by distance $1.2 \,\mathring A$. The distance of the centre of mass, from the carbon atom is ........  $\mathring A$
  • A
    $0.48$
  • B
    $0.51$
  • C
    $0.56$
  • $0.69$

Answer

Correct option: D.
$0.69$
d
(d)

mass of the $C$ atom $=12$ units

mass of the $O$ atom $=16$ units

Position of the $C$ atom is taken to be origin.

position of the centre of mass :

$=\frac{1.2 \times 16}{12+16}=\frac{1.2 \times 16}{28}=0.69 \mathring A$

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