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  1. In carbon monoxide molecule, the carbon and the oxygen atoms are separated by a distance 1.12 × 10–10 m. The distance of the centre of mass, from the carbon atom is
    1. 0.64 × 10–10 m
    2. 0.56 × 10–10 m
    3. 0.51 × 10–10 m
    4. 0.48 × 10–10 m
Correct Option: A


From definition of centre of mass.

d =
16 × 1.12 × 10-10 + 12 × 0
16 + 12

=
16 × 1.12 × 10-10
= 0.64 × 10-10 m.
28



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