The observation that characterizes a positive Tollens’ test is to be stated. Concept introduction: Tollens’ test is a laboratory test which is used to identify an aldehyde and a ketone . It is also called as silver mirror test. In this test, Tollens’ reagent is used for the oxidation of aldehyde, whereas ketone does not give this test. Thus, the reaction of aldehyde with Tollens reagent gives a positive Tollens test.

Question

13. (11pts total) Consider the arrows pointing at three different carbon-carbon bonds in the molecule depicted below. Bond B Bond A Bond C a. (2pts) Which bond between A-C is weakest? Which is strongest? Place answers in appropriate boxes. Weakest Bond Strongest Bond b. (4pts) Consider the relative stability of all cleavage products that form when bonds A, B, AND C are homolytically cleaved/broken. Hint: cleavage products of bonds A, B, and C are all carbon radicals. i. Which ONE cleavage product is the most stable? A condensed or bond line representation is fine. ii. Which ONE cleavage product is the least stable? A condensed or bond line representation is fine. c. (5pts) Use principles discussed in lecture, supported by relevant structures, to succinctly explain the why your part b (i) radical is more stable than your part b(ii) radical. Written explanation can be no more than one-two succinct sentence(s)! Google

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 14, Problem 14.32E

Interpretation Introduction

Interpretation:

The observation that characterizes a positive Tollens’ test is to be stated.

Concept introduction:

Tollens’ test is a laboratory test which is used to identify an aldehyde and a ketone. It is also called as silver mirror test. In this test, Tollens’ reagent is used for the oxidation of aldehyde, whereas ketone does not give this test. Thus, the reaction of aldehyde with Tollens reagent gives a positive Tollens test.

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13. (11pts total) Consider the arrows pointing at three different carbon-carbon bonds in the molecule depicted below. Bond B Bond A Bond C a. (2pts) Which bond between A-C is weakest? Which is strongest? Place answers in appropriate boxes. Weakest Bond Strongest Bond b. (4pts) Consider the relative stability of all cleavage products that form when bonds A, B, AND C are homolytically cleaved/broken. Hint: cleavage products of bonds A, B, and C are all carbon radicals. i. Which ONE cleavage product is the most stable? A condensed or bond line representation is fine. ii. Which ONE cleavage product is the least stable? A condensed or bond line representation is fine. c. (5pts) Use principles discussed in lecture, supported by relevant structures, to succinctly explain the why your part b (i) radical is more stable than your part b(ii) radical. Written explanation can be no more than one-two succinct sentence(s)! Google

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10. (5pts) Provide the complete arrow pushing mechanism for the chemical transformation → depicted below Use proper curved arrow notation that explicitly illustrates all bonds being broken, and all bonds formed in the transformation. Also, be sure to include all lone pairs and formal charges on all atoms involved in the flow of electrons. CH3O II HA H CH3O-H H ①

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 14, Problem 14.32E

Interpretation Introduction

Interpretation:

The observation that characterizes a positive Tollens’ test is to be stated.

Concept introduction:

Tollens’ test is a laboratory test which is used to identify an aldehyde and a ketone. It is also called as silver mirror test. In this test, Tollens’ reagent is used for the oxidation of aldehyde, whereas ketone does not give this test. Thus, the reaction of aldehyde with Tollens reagent gives a positive Tollens test.

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Check out sample textbook solution

Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 14, Problem 14.32E

Interpretation Introduction

Interpretation:

The observation that characterizes a positive Tollens’ test is to be stated.

Concept introduction:

Tollens’ test is a laboratory test which is used to identify an aldehyde and a ketone. It is also called as silver mirror test. In this test, Tollens’ reagent is used for the oxidation of aldehyde, whereas ketone does not give this test. Thus, the reaction of aldehyde with Tollens reagent gives a positive Tollens test.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 14, Problem 14.32E

Interpretation Introduction