The normal boiling point of ICl (MW= 162 g/mol) is 97 Celsius while that of Br2

Question

The normal boiling point of ICl (MW= 162 g/mol) is 97 Celsius while that of Br2 (MW= 160g/mol) is 59. This is due to.... A. London forces B. Dipole-dipole interactions with ICl C. D/D interactions in Br2 D. London forces in ICl E. London forces in Br2
I would answer B since ICl has a Dipole. The normal boiling point of ICl (MW= 162 g/mol) is 97 Celsius while that of Br2 (MW= 160g/mol) is 59. This is due to.... A. London forces B. Dipole-dipole interactions with ICl C. D/D interactions in Br2 D. London forces in ICl E. London forces in Br2
I would answer B since ICl has a Dipole. A. London forces B. Dipole-dipole interactions with ICl C. D/D interactions in Br2 D. London forces in ICl E. London forces in Br2
I would answer B since ICl has a Dipole.

Explanation / Answer

The boiling points of ICl is higher than Br2 of similar molecular weight because the London-dispersion forces between ICl is greater than those between Br2.

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