The explanation corresponding to the given statement that the [ 4 + 2 ] Diels-Alder reaction is photochemically forbidden is to be proved. Concept introduction: When ultraviolet light is used rather than heat for [ 4 + 2 ] Diels-Alder reaction, it is photochemically not allowed. A photon with correct energy strikes 1 , 3 − butadiene , due to which one of the pi electrons gets excited to the next high molecular orbital. This high orbital is now occupied and is the new HOMO ∗ of the excited molecule.

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Answer 1

Question

Chapter 15.12C, Problem 15.19P

Interpretation Introduction

Interpretation:

The explanation corresponding to the given statement that the [4+2] Diels-Alder reaction is photochemically forbidden is to be proved.

Concept introduction:

When ultraviolet light is used rather than heat for [4+2] Diels-Alder reaction, it is photochemically not allowed. A photon with correct energy strikes 1,3−butadiene, due to which one of the pi electrons gets excited to the next high molecular orbital. This high orbital is now occupied and is the new HOMO∗ of the excited molecule.

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Answer 2

Question

Chapter 15.12C, Problem 15.19P

Interpretation Introduction

Interpretation:

The explanation corresponding to the given statement that the [4+2] Diels-Alder reaction is photochemically forbidden is to be proved.

Concept introduction:

When ultraviolet light is used rather than heat for [4+2] Diels-Alder reaction, it is photochemically not allowed. A photon with correct energy strikes 1,3−butadiene, due to which one of the pi electrons gets excited to the next high molecular orbital. This high orbital is now occupied and is the new HOMO∗ of the excited molecule.

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Answer 3

Question

Chapter 15.12C, Problem 15.19P

Interpretation Introduction

Interpretation:

The explanation corresponding to the given statement that the [4+2] Diels-Alder reaction is photochemically forbidden is to be proved.

Concept introduction:

When ultraviolet light is used rather than heat for [4+2] Diels-Alder reaction, it is photochemically not allowed. A photon with correct energy strikes 1,3−butadiene, due to which one of the pi electrons gets excited to the next high molecular orbital. This high orbital is now occupied and is the new HOMO∗ of the excited molecule.

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Answer 4

Question

Chapter 15.12C, Problem 15.19P

Interpretation Introduction

Interpretation:

The explanation corresponding to the given statement that the [4+2] Diels-Alder reaction is photochemically forbidden is to be proved.

Concept introduction:

When ultraviolet light is used rather than heat for [4+2] Diels-Alder reaction, it is photochemically not allowed. A photon with correct energy strikes 1,3−butadiene, due to which one of the pi electrons gets excited to the next high molecular orbital. This high orbital is now occupied and is the new HOMO∗ of the excited molecule.

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Answer 5

Chapter 15.12C, Problem 15.19P

Interpretation Introduction

Interpretation:

The explanation corresponding to the given statement that the [4+2] Diels-Alder reaction is photochemically forbidden is to be proved.

Concept introduction:

When ultraviolet light is used rather than heat for [4+2] Diels-Alder reaction, it is photochemically not allowed. A photon with correct energy strikes 1,3−butadiene, due to which one of the pi electrons gets excited to the next high molecular orbital. This high orbital is now occupied and is the new HOMO∗ of the excited molecule.

Answer 6

Chapter 15.12C, Problem 15.19P

Interpretation Introduction

Interpretation:

The explanation corresponding to the given statement that the [4+2] Diels-Alder reaction is photochemically forbidden is to be proved.

Concept introduction:

When ultraviolet light is used rather than heat for [4+2] Diels-Alder reaction, it is photochemically not allowed. A photon with correct energy strikes 1,3−butadiene, due to which one of the pi electrons gets excited to the next high molecular orbital. This high orbital is now occupied and is the new HOMO∗ of the excited molecule.

Answer 7

Chapter 15.12C, Problem 15.19P

Interpretation Introduction

Interpretation:

The explanation corresponding to the given statement that the [4+2] Diels-Alder reaction is photochemically forbidden is to be proved.

Concept introduction:

When ultraviolet light is used rather than heat for [4+2] Diels-Alder reaction, it is photochemically not allowed. A photon with correct energy strikes 1,3−butadiene, due to which one of the pi electrons gets excited to the next high molecular orbital. This high orbital is now occupied and is the new HOMO∗ of the excited molecule.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 15.2 - Prob. 15.1P Ch. 15.2 - Prob. 15.2P Ch. 15.2 - Prob. 15.3P Ch. 15.4 - Prob. 15.4P Ch. 15.4 - Prob. 15.5P Ch. 15.5 - Treatment of an alkyl halide with AgNO3 in alcohol...Ch. 15.5 - Propose a mechanism for each reaction, showing...Ch. 15.6 - When Br2 is added to buta-1,3-diene at 15 C, the...Ch. 15.7 - Prob. 15.9P Ch. 15.7 - When N-bromosuccinimide is added to hex-1-ene in...

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