Multiple Choice
Which intermolecular forces are present in a molecule of CH\(_3\)OH (methanol)?
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13. Liquids, Solids & Intermolecular Forces
Intermolecular Forces
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Which of the following substances can form hydrogen bonds in a pure sample?
A
C2H6
B
NH3
C
CH4
D
CO2
Verified step by step guidance1
Understand what hydrogen bonding is: it is a special type of dipole-dipole interaction that occurs when hydrogen is covalently bonded to highly electronegative atoms like nitrogen (N), oxygen (O), or fluorine (F).
Examine each substance to see if it contains hydrogen atoms bonded directly to N, O, or F:
For C2H6 (ethane), hydrogen is bonded to carbon, which is not electronegative enough to form hydrogen bonds.
For NH3 (ammonia), hydrogen is bonded to nitrogen, which is highly electronegative, so NH3 can form hydrogen bonds.
For CH4 (methane) and CO2 (carbon dioxide), neither has hydrogen bonded to N, O, or F, so they cannot form hydrogen bonds.
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