Comparison of Acidity in organic chemistry
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Acidic strength comparison between ethanoic acid ethanol and ethanal and benzaldehyde...
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Acidity of phenols
Acidity of Phenols/OC -II PCI Syllabus/Effect of substituents on acidity of phenols
Hi dear students, in this video I had explained about acidity of Phenols and Effect of substituents on acidity of phenols. I had tried to explain all the points by animations. So don't hasitate to study now, See this video and you will come to know the facts about acidity and basicity of organic compounds. After watching this video it will be very easy to answer the following questions,
What are phenols?
what about acidity of phenols?
factors affecting acidity of phenols?
Pka of phenols?
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The attacking of the nucleophile formed in the reactionof acetone an.pdf
The attacking of the nucleophile formed in the reactionof acetone and benzaldehyde on most
preferntially on the carbonylcarbon of the benzaldehyde but not on the acetaldehyde. This
isbecause the electrophilic cheractor of the carbonyl carbon of thebenzaldehyde is increases due
to the presence of the electron withdrawing benzene. Hence it readily participate in the
reactioncompare with the acetaldehyde.
Ethanol is polar solvent. When washes a compound withthis solvent remove the impurities has
the polar nature.
Solution
The attacking of the nucleophile formed in the reactionof acetone and benzaldehyde on most
preferntially on the carbonylcarbon of the benzaldehyde but not on the acetaldehyde. This
isbecause the electrophilic cheractor of the carbonyl carbon of thebenzaldehyde is increases due
to the presence of the electron withdrawing benzene. Hence it readily participate in the
reactioncompare with the acetaldehyde.
Ethanol is polar solvent. When washes a compound withthis solvent remove the impurities has
the polar nature..
Recommended
Acidity of phenols
Acidity of Phenols/OC -II PCI Syllabus/Effect of substituents on acidity of phenols
Hi dear students, in this video I had explained about acidity of Phenols and Effect of substituents on acidity of phenols. I had tried to explain all the points by animations. So don't hasitate to study now, See this video and you will come to know the facts about acidity and basicity of organic compounds. After watching this video it will be very easy to answer the following questions,
What are phenols?
what about acidity of phenols?
factors affecting acidity of phenols?
Pka of phenols?
Please do subscribe Online ustaad and share this video to as many as possible.
Online Ustaad
https://www.youtube.com/channel/UCzCN5UTEjFAtCBtrcNOWbyA
Qualitative analysis of fats and oils
https://youtu.be/WXO6Ggdjwvo
you can also see
Is torrent downloading safe : https://youtu.be/vHjtNnXGztA
How To Make Youtube Thumbnail Free 2020 :https://youtu.be/Mvsl6P8z-Mk
Thumbnail Tips 2020 Hindi :https://youtu.be/H83VNRj_6gg
independence day status 2020 :https://youtu.be/0w7uq4bigFY
how to make you tube cover photo : https://youtu.be/k32Z-lXE7hc
How to cut a music file in 2 minutes :https://youtu.be/2wjfCOfOGGk
Keep watching your own channel online ustaad and give me your suggestions in comment box.
if you find this video helpful then like it, share it and subscribe online ustaad for more helpful & informational videos.
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The attacking of the nucleophile formed in the reactionof acetone an.pdf
The attacking of the nucleophile formed in the reactionof acetone and benzaldehyde on most
preferntially on the carbonylcarbon of the benzaldehyde but not on the acetaldehyde. This
isbecause the electrophilic cheractor of the carbonyl carbon of thebenzaldehyde is increases due
to the presence of the electron withdrawing benzene. Hence it readily participate in the
reactioncompare with the acetaldehyde.
Ethanol is polar solvent. When washes a compound withthis solvent remove the impurities has
the polar nature.
Solution
The attacking of the nucleophile formed in the reactionof acetone and benzaldehyde on most
preferntially on the carbonylcarbon of the benzaldehyde but not on the acetaldehyde. This
isbecause the electrophilic cheractor of the carbonyl carbon of thebenzaldehyde is increases due
to the presence of the electron withdrawing benzene. Hence it readily participate in the
reactioncompare with the acetaldehyde.
Ethanol is polar solvent. When washes a compound withthis solvent remove the impurities has
the polar nature..
Phenols
Phenols are aromatic compounds containing atleast one hydroxyl group attached to benzene ring.
Analysis of phenols and qualitative tests for phenols
Students of gurunanak college of pharmacy,Nagpur
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acid base indicators, carbon acid, pH scale., carbanions, acids and conjugate bases, reactions of carbon acids, phosphonium ions as carbon acids , Carbon acids in synthesis, Super acid,
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Nitration occurs through electrophilic addition o.pdf
Nitration occurs through electrophilic addition of aromatic rings by breaking one of
its aromatic bonds in order to attack the nitogen. The ring with more electron density will be
more likely to add NO2 groups in its meta position (the only position if another group is already
attached). When electrophillic addition occurs, the benzene ring would have to unfavorably
break its stable aromaticity to attack. However, the phenyl oxygen can donate its electrons to the
benzene ring, thus enriching it with electron density and stabilizing the positive charge. The
carbonyl group does nothing to stabilize the other benzene ring during its electrophilic addition.
In fact, the carbonyl group may as well have the opposite effect: the resonance structure of a
single bonded carbon to its oxygen pulls electrons away from the benzene ring through inductive
effect.
Solution
Nitration occurs through electrophilic addition of aromatic rings by breaking one of
its aromatic bonds in order to attack the nitogen. The ring with more electron density will be
more likely to add NO2 groups in its meta position (the only position if another group is already
attached). When electrophillic addition occurs, the benzene ring would have to unfavorably
break its stable aromaticity to attack. However, the phenyl oxygen can donate its electrons to the
benzene ring, thus enriching it with electron density and stabilizing the positive charge. The
carbonyl group does nothing to stabilize the other benzene ring during its electrophilic addition.
In fact, the carbonyl group may as well have the opposite effect: the resonance structure of a
single bonded carbon to its oxygen pulls electrons away from the benzene ring through inductive
effect..
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2024.06.01 Introducing a competency framework for languag learning materials ...
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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Similar to Comparison of Acidity in organic chemistry
Phenols
Phenols are aromatic compounds containing atleast one hydroxyl group attached to benzene ring.
Analysis of phenols and qualitative tests for phenols
Students of gurunanak college of pharmacy,Nagpur
Carbon acid modified
acid base indicators, carbon acid, pH scale., carbanions, acids and conjugate bases, reactions of carbon acids, phosphonium ions as carbon acids , Carbon acids in synthesis, Super acid,
Phenol Presentation
In this presentation You will get Acidity of phenols, Resonance , Qualitative test for Phenols, Uses And Structure Of phenols.
Nitration occurs through electrophilic addition o.pdf
Nitration occurs through electrophilic addition of aromatic rings by breaking one of
its aromatic bonds in order to attack the nitogen. The ring with more electron density will be
more likely to add NO2 groups in its meta position (the only position if another group is already
attached). When electrophillic addition occurs, the benzene ring would have to unfavorably
break its stable aromaticity to attack. However, the phenyl oxygen can donate its electrons to the
benzene ring, thus enriching it with electron density and stabilizing the positive charge. The
carbonyl group does nothing to stabilize the other benzene ring during its electrophilic addition.
In fact, the carbonyl group may as well have the opposite effect: the resonance structure of a
single bonded carbon to its oxygen pulls electrons away from the benzene ring through inductive
effect.
Solution
Nitration occurs through electrophilic addition of aromatic rings by breaking one of
its aromatic bonds in order to attack the nitogen. The ring with more electron density will be
more likely to add NO2 groups in its meta position (the only position if another group is already
attached). When electrophillic addition occurs, the benzene ring would have to unfavorably
break its stable aromaticity to attack. However, the phenyl oxygen can donate its electrons to the
benzene ring, thus enriching it with electron density and stabilizing the positive charge. The
carbonyl group does nothing to stabilize the other benzene ring during its electrophilic addition.
In fact, the carbonyl group may as well have the opposite effect: the resonance structure of a
single bonded carbon to its oxygen pulls electrons away from the benzene ring through inductive
effect..
Similar to Comparison of Acidity in organic chemistry (15)
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Analysis of phenols and qualitative tests for phenols
Analysis of phenols and qualitative tests for phenols
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http://sandymillin.wordpress.com/iateflwebinar2024
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Comparison of Acidity in organic chemistry
- 2. Phenols are much more acidic than alcohols because the negative charge in the phenoxide ion is not localized on the oxygen atom as it is in an alkoxide ion but is delocalized as it is shared by a number of carbon atoms in benzene ring.
- 3. Oxygen is electronegative, much more than carbon. In acetate, the negative charge is delocalized onto both oxygens, which happen to be the electronegative atoms. In phenoxide, the charge is trying to delocalize onto carbons which just aren't that electronegative. So phenoxide is less stabilized by resonance, and phenol is a weaker acid.
- 4. In Benzoic acid negative charge is present at the more electronegative oxygen atom. Where as in conjugate base of phenol phenoxide ion the negative charge is on less electronegative carbon atom . Thus the benzoate ion is more stable than phenoxide ion .So benzoic acid is more more acidic than phenol.