You have to take into account the possibility of forming molecules from the natural isotopes of chlorine (Cl-35 and Cl-37) and those of oxygen (O-16, 17, 18).
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6
The chemical fomula of chlorine monoxide is ClO.
Cl2O
It is bent
Cl2O
Cl2O is covalent
dichlorine oxide.
Dichlorine monoxide
110
i think it must be neutral
trigonal pyramidal
the answer is Cl207
Being a covalent compound, the intermolecular forces between the Cl2O molecules are weak and easily overcome. Therefore little heat energy, in terms of low boiling point is involved.