Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 20: Q19P (page 1038)

Classify each hydrogen atom in the following compounds as primary (10),secondary(20) , or tertiary(30).

(a) butane

(b) isobutane

(c) 2-methylbutane

(d) cyclohexane

(e) norbornane (bicyclo heptane)

Short Answer

Expert verified

(a)

(b)

(c)

(d)

(e)

Step by step solution

01

Primary hydrogen  (10)

A primary hydrogen may be defined as a hydrogen on a carbon attached to only one other carbon atom.

02

Secondary hydrogen  (20)

A secondary hydrogen may be defined as a hydrogen on a carbon attached to only two other carbon atoms.

03

Tertiary hydrogen  (30)

A tertiary hydrogen may be defined as a hydrogen on a carbon attached to three other carbon atoms.

04

Classifying each hydrogen atom as primary(10)  , secondary(20) , or tertiary (30) 

(a)

In butane, there are both primary and secondary hydrogens.

(b)

In isobutane, there are primary, secondary and tertiary hydrogens.

(c)

In , there are primary, secondary and tertiary hydrogens.

(d)

In cyclohexane, all the hydrogens present are secondary since the hydrogens on carbon are attached to only two other carbon atoms.

(e)

In norbornane (bicyclo heptane), there are secondary and tertiary hydrogens.

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!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Question: The IR spectrum of trans-oct-2-enoic acid is shown. Point out the spectral characteristics that allow you to tell that this is a carboxylic acid, and show which features lead you to conclude that the acid is unsaturated and conjugated.

Question: Convert the following infrared wavenumbers into wavelengths.

(a) 1600 cm-1, typical for an aromatic

(b) 3000 cm-1 , typical for a saturated C-H bond

(c) 1715 cm-1 , typical for a ketone carbonyl

(d) 1750cm-1 , typical for an ester carbonyl

(e)2200cm-1 , typical for a nitrile

(f) 3300cm-1 , typical for an alcohol O-H.

Question: Arrange each group of compounds in order of increasing acidity.

  1. phenol, ethanol, acetic acid
  2. p-toluenesulfonic acid, acetic acid, chloroacetic acid
  3. benzoic acid, o-nitrobenzoic acid, m-nitrobenzoic acid
  4. butyric acid, α-bromobutyric acid, β-bromobutyric acid

There are three dioxane isomers: 1,2-dioxane, 1,3- dioxane, and 1,4-dioxane. One of these acts like an ether and is an excellent solven for Grignard reactions. Another one is potentially explosive when heated. The third one quickly hydrolyzes in dilute acid. Show which isomer acts like a simple ether, and then explain why one of them is potentially explosive. Propose a mechanism for the acid hydrolysis of the third isomer.

Question. A student adds NBS to a solution of 1-methylcyclohexene and irradiates the mixture with a sunlamp until all the NBS has reacted. After a careful distillation, the product mixture contains two major products of formula.

  1. Draw the resonance forms of the three possible allylic free radical intermediates.
  2. Rank these three intermediates from most stable to least stable.
  3. Draw the products obtained from each free-radical intermediate.
See all solutions

Recommended explanations on Chemistry Textbooks

Inorganic Chemistry

Read Explanation

Kinetics

Read Explanation

Ionic and Molecular Compounds

Read Explanation

Chemical Analysis

Read Explanation

Making Measurements

Read Explanation

The Earths Atmosphere

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free