Which two of the following molecular substances in the gaseous state have the strongest permanent molecular dipole?
GeH_4
ICl
SiF_4
CH_2Cl_2
Co_2
A. Co_2 and SiF_4
B. ICl and CH_2Cl_2
C. CH_2Cl_2 and Co_2
D. ICl and Co_2
E. GeH_4 and SiF_4
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In a gaseous state, it should be known that halogens form incredibly strong covalent bonds. Hence, compounds containing halogens should also have the strongest permanent molecular dipole.
With this information, we can narrow our options down to:
ICl
CH_2Cl_2
Since there is an option which contains both these compounds, it will surely be our answer, which here is B.
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