Why might a major volcanic eruption lead to cooler temperatures of Earth's surface?
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Answer: and
are hydrogen boding,
and
are ion-dipole forces.
Explanation: If the bond is formed between a metal and a non metal then it is known as ionic bond and ionic compounds have positive and negative ions and so they have ion-dipole forces. Aluminium chloride and Iron(III)bromide both are ionic as they have a bond between a metal and non metal and so both of these have ion-dipole forces.
Ammonia and ethanol both are polar molecules and we know that polar molecules have dipole-dipole forces.
A hydrogen bond could form if hydrogen is bonded with more electron negative atom(N, O or F).
In ammonia, H is bonded to N and in ethanol, H is bonded to O, so both of these molecules must have hydrogen bonding. Since hydrogen bond is stronger as compared to dipole - dipole forces, we will say that both ammonia and ethanol have hydrogen bonding.