Class 12 Exam > Class 12 Notes > Additional Study Material for Class 12 > Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2
Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 | Additional Study Material for Class 12 PDF Download
| Download, print and study this document offline |
Please wait while the PDF view is loading
Page 1
DPP : 02 / Alcohols, Phenols and Ethers
SCF-7, 1
st
floor, Sector-15, Panchkula
9217610408, 8699438881, 8699438882
Page No.1
ONE CAN CONQUER THE INNERSELF WITH-
DEDICATION,DISCIPLINE & UNSHAKEABLE FAITH IN GOD
Some important points & facts
1. PROPERTIES OF ALCOHOLS.
I. The lower alcohols are liquids, while higher having more than 12 carbon atoms are solids. They are
colourless neutral substances with characteristic alcoholic odour and burning taste.
II. The lower alcohols are readily soluble in water and the solubility decreases with the increase in molecular
weight.
III. Methyl alcohol (carbinol) is known as wood spirit, wood alcohol or naphtha. Drinking of methyl alcohol
causes blindness.
IV . Boiling points of alcohols are much higher than those of the corresponding alkanes. It is again due to
the formation of hydrogen bonding between the hydroxyl groups of the two molecules of an alcohol with the
result several molecules are associated to form a large molecule.
H—O---H—O---H—O
R R R
Hydrogen bonding in alcohol molecules
Among the isomeric alcohols, boiling point and melting point show the following trend.
Primary > Secondary > Tertiary
Thus, the boiling point decreases with branching. This is because of the fact that in secondary and tertiary
alcohols, alkyl part (hydrogen character) out weighs the —OH group due to branching.
V . Lower alcohols form solid addition compounds with anhydrous metallic salts like CaCl
2
, MgCl
2
and
CuSO
4
, CaCl
2
.4C
2
H
5
OH, MgCl
2
.6C
2
H
5
OH, CuSO
4
.2C
2
H
5
OH. By analogy to water of crystallisation, these
alcohol molecules are referred to as alcohols of crystallisation. For this reason, alcohols cannot be dried
over anhydrous calcium chloride.
(A) Reactions involving only the hydrogen atom of the —OH group, i.e., reactions involving cleavage of oxygen-
hydrogen bond, —O—H. All such reactions (No. 1 - 5) follow the following order.
Primary > Secondary > Tertiary
1. Action of alkali metals. Electropositive metals like Na, K, Ca, Mg and Al react with alcohols forming
alkoxides with the liberation of hydrogen gas.
+ ? + ?
2
Sod. alkoxide
2ROH 2Na 2RONa H
e.g.,
+ ? + ?
2 5 2 5 2
Sod. ethoxide
2C H OH 2Na 2C H ONa H
ALCOHOLS, PHENOLS & ETHERS
DAILY PRACTICE PROBLEMS - 2
Read More
|
12 videos|63 docs
|
FAQs on Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 - Additional Study Material for Class 12
| 1. What are the differences between alcohols, phenols, and ethers? |  |
Alcohols, phenols, and ethers are all organic compounds that contain oxygen, but they differ in their functional groups and chemical properties.
Alcohols have a hydroxyl (-OH) group attached to a carbon atom. They can be classified as primary, secondary, or tertiary based on the number of carbon atoms attached to the carbon bearing the hydroxyl group. Alcohols can undergo oxidation reactions to form aldehydes, ketones, or carboxylic acids.
Phenols, on the other hand, have a hydroxyl group attached directly to an aromatic ring. This makes them more acidic than alcohols. Phenols can undergo reactions such as electrophilic aromatic substitution and can be used as disinfectants or antiseptics.
Ethers have an oxygen atom bonded to two carbon atoms. They are relatively unreactive and often used as solvents or as starting materials for the synthesis of other compounds.
| 2. How are alcohols named? | |
Alcohols are named by replacing the -e ending of the corresponding alkane with -ol. The position of the hydroxyl group is indicated by a number before the name of the parent alkane. If there are multiple hydroxyl groups, the prefixes di-, tri-, etc., are used to indicate their number. For example, ethanol is named as such because it is derived from ethane by replacing one hydrogen atom with a hydroxyl group.
| 3. What are the properties of phenols? | |
Phenols have distinct properties compared to alcohols. Some of the important properties of phenols include:
1. Higher acidity: Phenols are more acidic than alcohols due to the resonance stabilization of the phenoxide ion formed after deprotonation of the hydroxyl group. This makes phenols capable of reacting with bases to form salts.
2. Insolubility in water: Phenols are slightly soluble in water due to hydrogen bonding, but their solubility decreases with increasing carbon chain length.
3. Reactivity: Phenols can undergo electrophilic aromatic substitution reactions due to the presence of the aromatic ring. They can also undergo reactions such as oxidation, esterification, and halogenation.
| 4. How do ethers differ from alcohols? | |
Ethers differ from alcohols in terms of their functional groups and properties. While both contain oxygen, alcohols have a hydroxyl group (-OH) attached to a carbon atom, whereas ethers have an oxygen atom bonded to two carbon atoms.
In terms of properties, ethers are relatively unreactive compared to alcohols. They do not undergo oxidation reactions like alcohols and are not acidic. Ethers are commonly used as solvents due to their low reactivity and ability to dissolve a wide range of organic compounds.
| 5. What are some common uses of alcohols, phenols, and ethers? | |
Alcohols, phenols, and ethers have various applications in different industries. Some common uses include:
- Alcohols: Ethanol, a type of alcohol, is used as a solvent, fuel, and disinfectant. Methanol is used as an industrial solvent and in the production of formaldehyde. Isopropyl alcohol is used as a disinfectant and cleaning agent.
- Phenols: Phenol is used in the production of various chemicals, including plastics, resins, and detergents. It is also used as an antiseptic and disinfectant. Some phenols, such as bisphenol A, are used in the production of polycarbonate plastics.
- Ethers: Ethers are commonly used as solvents, particularly in organic synthesis and extraction processes. Diethyl ether, for example, is used as an anesthetic and as a starting material for the synthesis of various organic compounds.
Related Exams
About this Document
|
4.73/5 Rating |
|
Nov 05, 2024 Last updated |
Document Description: Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 for Class 12 2024 is part of Additional Study Material for Class 12 preparation.
The notes and questions for Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 have been prepared according to the Class 12 exam syllabus. Information about Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 covers topics
like and Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 Example, for Class 12 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2.
Introduction of Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 in English is available as part of our Additional Study Material for Class 12
for Class 12 & Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 in Hindi for Additional Study Material for Class 12 course.
Download more important topics related with notes, lectures and mock test series for Class 12
Exam by signing up for free. Class 12: Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 | Additional Study Material for Class 12
Description
Full syllabus notes, lecture & questions for Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 | Additional Study Material for Class 12 - Class 12 | Plus excerises question with solution to help you revise complete syllabus for Additional Study Material for Class 12 | Best notes, free PDF download
Information about Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2
In this doc you can find the meaning of Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 defined & explained in the simplest way possible. Besides explaining types of
Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 theory, EduRev gives you an ample number of questions to practice Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 tests, examples and also practice Class 12
tests
|
Explore Courses for Class 12 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Free
,Alcohols
,practice quizzes
,Viva Questions
,past year papers
,video lectures
,Previous Year Questions with Solutions
,Phenols and Ethers : Daily Practice Problems (DPP) - 2 | Additional Study Material for Class 12
,Extra Questions
,Phenols and Ethers : Daily Practice Problems (DPP) - 2 | Additional Study Material for Class 12
,mock tests for examination
,study material
,Sample Paper
,shortcuts and tricks
,Phenols and Ethers : Daily Practice Problems (DPP) - 2 | Additional Study Material for Class 12
,Important questions
,Semester Notes
,Alcohols
,Objective type Questions
,Summary
,ppt
,MCQs
,Exam
,Alcohols
;
Additional Information about Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 for Class 12 Preparation
Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 Free PDF Download
The Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 is an invaluable resource that delves deep into the core of the Class 12 exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 now and kickstart your journey towards success in the Class 12 exam.
Importance of Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2
The importance of Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 cannot be overstated, especially for Class 12 aspirants.
This document holds the key to success in the Class 12 exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 Notes
Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 Notes on EduRev are your ultimate resource for success.
Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 Class 12 Questions
The "Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 Class 12 Questions" guide is a valuable resource for all aspiring students preparing for the
Class 12 exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 on the App
Students of Class 12 can study Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Alcohols, Phenols and Ethers : Daily Practice Problems (DPP) - 2 is prepared as per the latest Class 12 syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup