Iodine has greater heat of sublimation then its family members due to presence of stronger _.
Correct answer: B. London dispersion forces
- A. H-bonding
- B. London dispersion forces
- C. Dipole-dipole force
- D. Chemical bonding
Explanation
B is correct option because Iodine sublimes rather than melting and boiling. Its molecules prefer to stay in the gaseous state as they are not held together by strong intermolecular forces in their solid-state. Iodine has greater number of electrons about 53 electrons around its nucleus.So unsymmetrical electronic distribution or polarizibility of iodine is also very high.Due to this Strong London forces of dispersion are present among iodine molecules.That's why heat of sublimation of iodine is very high
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Properties of Liquids
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
Practise Liquids
350 free Liquids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.