The atoms that have fewer than eight electrons around them are to be stated. Also, the atoms having more than eight electrons around them are to be named. The reason behind the odd-electron species being very reactive is to be explained. Concept introduction: The chemical rule according to which the atoms tend to combine in a way that they have eight electrons in their outermost shell is known as the octet rule. But there are some molecules having fewer than eight, larger than eight or an odd number of electrons that do not follow this rule. To determine: The atoms that having fewer than eight electrons, the atoms having more than eight electrons and the reason behind the odd-electron species being very reactive.

Question

How many signals do you expect in the H NMR spectrum for this molecule? Br Br Write the answer below. Also, in each of the drawing areas below is a copy of the molecule, with Hs shown. In each copy, one of the H atoms is colored red. Highlight in red all other H atoms that would contribute to the same signal as the H already highlighted red. Note for advanced students: In this question, any multiplet is counted as one signal. Number of signals in the 'H NMR spectrum. For the molecule in the top drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in top molecule For the molecule in the bottom drawing area, highlight in red any other H atoms that will contribute to the same signal as the H atom already highlighted red. If no other H atoms will contribute, check the box at right. No additional Hs to color in bottom molecule

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Chapter 8, Problem 5RQ

Interpretation Introduction

Interpretation: The atoms that have fewer than eight electrons around them are to be stated. Also, the atoms having more than eight electrons around them are to be named. The reason behind the odd-electron species being very reactive is to be explained.

Concept introduction: The chemical rule according to which the atoms tend to combine in a way that they have eight electrons in their outermost shell is known as the octet rule. But there are some molecules having fewer than eight, larger than eight or an odd number of electrons that do not follow this rule.

To determine: The atoms that having fewer than eight electrons, the atoms having more than eight electrons and the reason behind the odd-electron species being very reactive.

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