Chapter 7: Q11P-b (page 197)

Question: Which member in each of the following sets ranks higher?
$- Cl or - {CH}_{2} C l$

Short Answer

Expert verified

$- C l$ Ranks higher.

Step by step solution

E and Z designation

The cis-trans naming system works only for disubstituted alkenes having two substituents other than hydrogen on the double bond. But when trisubstituted and tetra substitution of the double bond is present then the E and Z system is used for describing alkene stereochemistry.

Step 2: Rule for ranking substituents

Consider each of the double-bond carbons separately and ranks the two substituents according to the atomic number of the first atom in each. An atom with a higher atomic number will rank higher.

If the first atom same then, look at the second, third, or fourth atoms away from the double-bond until the first difference is found.

Multiple-bonded atoms are equivalent to the same number of single bonded atoms.

Ranking of given groups

As ranking is atomic number dependent, more the atomic number higher will be ranking.

So, $- C l$ ranks higher as it has more atomic numbers than C.

Unlock Step-by-Step Solutions & Ace Your Exams!

Full Textbook Solutions
Get detailed explanations and key concepts
Unlimited Al creation
Al flashcards, explanations, exams and more...
Ads-free access
To over 500 millions flashcards
Money-back guarantee
We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

Recommended explanations on Chemistry Textbooks

View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Question: Which member in each of the following sets ranks higher?
$- Cl or - {CH}_{2} C l$

Short Answer

Step by step solution

E and Z designation

Step 2: Rule for ranking substituents

Ranking of given groups

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Chemistry Branches

Ionic and Molecular Compounds

Kinetics

The Earths Atmosphere

Chemical Analysis

Nuclear Chemistry

Study anywhere. Anytime. Across all devices.

Question: Which member in each of the following sets ranks higher?-Clor-CH2Cl

Short Answer

Step by step solution

E and Z designation

Step 2: Rule for ranking substituents

Ranking of given groups

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Chemistry Textbooks

Chemistry Branches

Ionic and Molecular Compounds

Kinetics

The Earths Atmosphere

Chemical Analysis

Nuclear Chemistry

Study anywhere. Anytime. Across all devices.

Question: Which member in each of the following sets ranks higher?
$- Cl or - {CH}_{2} C l$