In the \( \mathrm{HCl} \) molecule, the separation between the nuclei of the two atoms is about ...

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In the \( \mathrm{HCl} \) molecule, the separation between the nuclei of the two atoms is about \( 1.27 \AA\left(1 \AA=10^{-10} \mathrm{~m}\right) \). The approximate location of the centre of mass of the molecule, assuming the chlorine atom to be about \( 35.5 \) times massive as hydrogen is
[Kerala PET 2002]
(a) \( 1 \AA \)
(b) \( 2.5 \AA \)
(c) \( 1.24 \AA \)
(d) \( 1.5 \AA \)
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