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Chapter 17: Q.30. (page 641)

Question: How many electrons are contained in each molecule?

Short Answer

Expert verified

Answer

  1. This molecule has 10蟺 electrons.
  2. This molecule has 7蟺 electrons.
  3. This molecule has 10蟺electrons.
  4. This molecule has 14蟺 electrons.
  5. This molecule has 12蟺electrons.

Step by step solution

01

To count the number of π electrons in a molecule

The number of 蟺electrons can be calculated by considering the number of double bonds as well as the number of lone pairs in a molecule.

A double bond corresponds to two electrons in a molecule. Always count the number of double bonds and multiply it by two, this will provide the number of 蟺 electrons per double bond in a molecule.

02

The number of π electrons in the given molecules

a. The following molecule has 10蟺electrons.

Compound a

b. The following molecule has 7蟺 electrons.

Compound b


c. The following molecule has 10蟺electrons.

Compound c


d. The following molecule has 14蟺 electrons.

Compound d


e. The following molecule has 12蟺electrons.

Compound e

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