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Chapter 3: Q.44. (page 91)

Question: Rank the following compounds in order of increasing melting point.

Short Answer

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Answer

The compounds can be arranged in the order of increasing melting point as follows:

Step by step solution

01

Melting point

The size of a particular molecule can impact its melting point.Molecules comprising identical melting points may possess a similar structure when compared to those exhibiting varying melting points.

02

Arrangement of compounds based on the increasing order of melting point

The interactions present in 2-propanol are Vander Waals forces, dipole-dipole interaction, and hydrogen bonding. The only interaction that occurs in 2-methylpropane is Vander Waals forces.

Acetone is a ketone, and ketones are regarded as polar compounds. The interaction existing in acetone is dipole-dipole and Vander Waals forces.

The compounds can be arranged in the increasing order of melting points as follows:

Arrangement of compounds based on the increasing order of melting point

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Most popular questions from this chapter

Question: Explain why CH3CH2NHCH3has a higher boiling point than (CH3)3N, even though they have the same molecular weight.

Question: Predict which compound in each pair has the higher melting point.

a.

b.

Question: Rank the compounds in each group in order of increasing strength of intermolecular forces.

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Question: Cocaine is a widely abused, addicting drug. Cocaine is usually obtained as its hydrochloride salt (cocaine hydrochloride) but can be converted to crack (the neutral molecule) by treatment with base. Which of the two compounds here has a higher boiling point? Which is more soluble in water? How does the relative solubility explain why crack is usually smoked but cocaine hydrochloride is injected directly into the bloodstream?

Question: Quinapril (trade name Accupril) is a drug used to treat hypertension and congestive heart failure.

a. Identify the functional groups in quinapril.

b. Classify any alcohol, amide, or amine as 10,20 or 30.

c. At which sites can quinapril hydrogen bond to water?

d. At which sites can quinapril hydrogen bond to acetone [CH32CO]?

e. Label the most acidic hydrogen atom.

f. Which site is most basic?
See all solutions

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