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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:a. Classify the carbon atoms in each compound as 10,20,30, or 40. b. Classify the hydrogen atoms in each compound as 10,20,30.

1

2

3

4

Question: Rank the compounds in each group in order of increasing boiling point.

a.

b.

Question: Label the electrophilic and nucleophilic sites in each molecule.

a.

b.

c.

d.

Question: (a) Label the hydrophobic and hydrophilic portions of each molecule. (b) At which sites can C hydrogen bond to another molecule like itself? (c) At which sites can D hydrogen bond to water?

Question: Many drugs are sold as their hydrochloride salts (R2NH2+Cl-), formed by reaction of an amine (R2NH2)with HCl.

a. Draw the product (a hydrochloride salt) formed by reaction of acebutolol with HCl. Acebutolol is a 尾 blocker used to treat high blood pressure. b. Discuss the solubility of acebutolol and its hydrochloride salt in water. c. Offer a reason as to why the drug is marketed as a hydrochloride salt rather than a neutral amine.
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