Top videos

Landus Mumbere Expedito
3 Views · 5 hours ago

This video talks about the mechanism involved in an SN1 reaction. It also elaborates on what is a rate determining step and how it affects the rate of a reaction. We learn how to calculate the rate of an SN1 reaction and also, what is the order of an SN1 reaction. In the end, it tells why the nucleophile does not affect the rate of an SN1 reaction while the concentration and type of substrate does.

00:00- Introduction
00:30- What is nucleophilic substitution?
1:15- How does nucleophilic substitution occur?
1:40- Mechanism of SN1 reaction
3:00- What is RDS?
4:11- Equation for reaction rate
5:47- Factors affecting the rate

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Aanchal Arora

Landus Mumbere Expedito
3 Views · 5 hours ago

Nucleophilic Substitution Reactions might involve the formation of more than one product. How is that possible? And, which would be the major product? This video talks about why and how carbocation rearrangement occurs, leading to the formation of unexpected major products!

00:00- Introduction
00:39- 1,2-Hydride shift.
4:23- 1,2-Methyl shift
6:45- How to know when rearrangement happens?

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Master the concept of “SN1/SN2/E1/E2” through practice exercises and videos - https://www.khanacademy.org/sc....ience/class-12-chemi

Check out more videos and exercises on “HALOALKANES AND HALOARENES” - https://www.khanacademy.org/sc....ience/class-12-chemi

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by
Aanchal Arora

Landus Mumbere Expedito
3 Views · 5 hours ago

This video talks about the effect of substrate on the rate of an SN1 reaction. It helps compare various substrates having the same type of leaving group and also briefly helps recall the mechanism of the SN1 rate.

00:00- Recall the mechanism of SN1 reaction.
00:50- Factors affecting the rate of an SN1 reaction.
01:16- Why does the strength of a nucleophile not affect the rate of an SN1 reaction?
01:50- Comparing various substrates for their reactivity towards an SN1 reaction.
6:15- What happens in the next video?

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Master the concept of “SN1 reactions” through practice exercises and videos - https://www.khanacademy.org/sc....ience/class-12-chemi

Check out more videos and exercises on “Haloalkanes and haloarenes” - https://www.khanacademy.org/sc....ience/class-12-chemi

To get you fully ready for your exam and help you fall in love with Chemistry, find the complete bank of exercises and videos for “class 12 Chemistry” here - https://www.khanacademy.org/sc....ience/class-12-chemi

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by
Aanchal Arora

Landus Mumbere Expedito
3 Views · 5 hours ago

The video helps us recall the various factors that help stabilise a carbocation. This helps us to compare the various substrates during an SN1 reaction

00:00- Need to talk about the stability of carbocations.
01:03- Comparing the rates of SN1 reaction for the given substrates.

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and
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Master the concept of “SN1/SN2/E1/E2” through practice exercises and videos - https://www.khanacademy.org/sc....ience/class-12-chemi

Check out more videos and exercises on “Haloalkanes and Haloarenes” - https://www.khanacademy.org/sc....ience/class-12-chemi

To get you fully ready for your exam and help you fall in love with “Chemistry” , find the complete bank of exercises and videos for “Class 12 Chemistry” here - https://www.google.com/url?client=internal-element-cse&cx=004984196166817161901:gt3nscsxv5o&q=https://www.khanacademy.org/science/class-12-chemistry-india&sa=U&ved=2ahUKEwiukczwjvT9AhWCxDgGHfXPAtoQFnoECAAQAQ&usg=AOvVaw0f5A9FAvkuC8TX7FNf1t3c

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by
Aanchal Arora

Landus Mumbere Expedito
3 Views · 6 hours ago

This video talks about the mechanism involved when a symmetrical alkyne is treated with a hydrogen halide.

00:00- Introduction
1:03-Reaction between ethyne and HBr
1:44- Why is there no resonance in case of a vinylic carbocation?
3:40- What happens if we have excess HBr?
4:42- How do we decide the major product?


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Master the concept of “Alkynes: Properties” through practice exercises and videos - https://www.khanacademy.org/sc....ience/class-11-chemi

Check out more videos and exercises on “Hydrocarbons” - https://www.khanacademy.org/sc....ience/class-11-chemi

To get you fully ready for your exam and help you fall in love with Chemistry , find the complete bank of exercises and videos for “class 11 Chemistry” here - https://www.khanacademy.org/sc....ience/class-11-chemi

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by
Aanchal Arora

Landus Mumbere Expedito
3 Views · 6 hours ago

This video talks about what happens when HBr is added to an alkene in the presence of a peroxide and how is that different from the usual addition of HBr to an alkene.


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Master the concept of “Electrophilic addition of hydrogen halides” through practice exercises and videos - https://www.khanacademy.org/sc....ience/organic-chemis

Check out more videos and exercises on “Electrophilic Addition of alkenes and alkynes” - https://www.khanacademy.org/sc....ience/organic-chemis

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by
Aanchal Arora

Landus Mumbere Expedito
3 Views · 5 hours ago

This video talks about the effect of leaving group on the rate of an SN2 reaction.

Practice this concept - https://www.khanacademy.org/sc....ience/class-12-chemi
https://www.khanacademy.org/sc....ience/class-12-chemi
Master the concept of “sn2/sn1/E1/E2” through practice exercises and videos - Link to topichttps://www.khanacademy.org/sc....ience/class-12-chemi
Check out more videos and exercises on “Haloalkanes and Haloarenes” - https://www.khanacademy.org/sc....ience/class-12-chemi
Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.
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Created by
Aanchal Arora

Landus Mumbere Expedito
3 Views · 5 hours ago

This video talks about the effect of a leaving group and solvent on the rate of an SN1 reaction.

00:11- Mechanism of SN1 reaction.
00:35- Why care about the leaving group stability?
1:12- Examples!
4:54- Effect of solvent

Master the concept of “SN1/SN2/E1/E2” through practice exercises and videos - https://www.khanacademy.org/sc....ience/class-12-chemi

Check out more videos and exercises on “Haloalkanes and haloarenes” - https://www.khanacademy.org/sc....ience/class-12-chemi

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by
Aanchal Arora

tebtalks
15 Views · 2 months ago

😍

Landus Mumbere Expedito
22 Views · 6 months ago

The ability to pass Biology exams lies in writing and rewriting notes, questions and answers to internalise the concepts, improve on spellings and writing.

Landus Mumbere Expedito
2 Views · 8 hours ago

Some substances are attracted to a magnet and some aren't. Let's look at some examples!

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.

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Created by Vibhor Pandey

Landus Mumbere Expedito
2 Views · 6 hours ago

Check out more videos and exercises on “Electrophilic aromatic substitution” - https://www.khanacademy.org/sc....ience/organic-chemis

To get you fully ready for your exam and help you fall in love with “Organic Chemistry”, find the complete bank of exercises and videos for “Organic Chemistry Essentials” here - https://www.khanacademy.org/sc....ience/organic-chemis

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by

Jitin Nair

Landus Mumbere Expedito
2 Views · 8 hours ago

Let's draw a ray diagram to identify the path of light through a prism!

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.

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Created by Vibhor Pandey

Landus Mumbere Expedito
2 Views · 6 hours ago

In this video we take up random basic organic molecules and compare their acidic strength using electronic effects.

Timestamps
Introduction - 0:00
Set #1 (Alcohol vs. sulphonic acid vs. phenol vs. carboxylic acid) - 0:09
Set #2 (Wate vs. hydrogen sulphide vs. benzene vs. ethyne) - 5:34
What do we learn in part 2 - 10:00


Practice this concept - “https://www.khanacademy.org/sc....ience/class-11-chemi

Master the concept of “Acidic strength” through practice exercises and videos - https://www.khanacademy.org/sc....ience/class-11-chemi

Check out more videos and exercises on “Acidic and basic strength of organic molecules” - https://www.khanacademy.org/sc....ience/class-11-chemi

To get you fully ready for your exam and help you fall in love with “Organic chemistry”, find the complete bank of exercises and videos for “Organic chemistry” here - https://www.khanacademy.org/sc....ience/class-11-chemi

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by Ishani Rathore


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Created by

Landus Mumbere Expedito
2 Views · 6 hours ago

In this video, we take up random basic organic molecules and compare their acidic strength using electronic effects.

Timestamps
Introduction - 0:00
Set #3 (Salicylic acid vs. Nitrobenzoic acid vs. Catechol vs. Nitrophenol) - 0:11


Practice this concept - “https://www.khanacademy.org/sc....ience/class-11-chemi

Master the concept of “Acidic strength” through practice exercises and videos - https://www.khanacademy.org/sc....ience/class-11-chemi

Check out more videos and exercises on “Acidic and basic strength of organic molecules” - https://www.khanacademy.org/sc....ience/class-11-chemi

To get you fully ready for your exam and help you fall in love with “Organic chemistry”, find the complete bank of exercises and videos for “Organic chemistry” here - https://www.khanacademy.org/sc....ience/class-11-chemi

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


Experience the joy of easy, seamless, accessible learning anywhere, anytime with Khan Academy.

Created by Ishani Rathore


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Created by

Landus Mumbere Expedito
2 Views · 8 hours ago

If we keep a magnetised needle near a current carrying wire, it deflects! But why?

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.

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Created by Vibhor Pandey

Landus Mumbere Expedito
2 Views · 6 hours ago

In this video how to compare basic strength of some basic aliphatic organic molecules.

Timestamps
What are we doing? - 0:00
What are Bronsted-Lowry bases? - 0:20
Set #1 (Formate ion vs. aliphatic carboxylate ions) - 0:35
Set #2 (Hydroxide ion vs. azanide ion) - 2:35
Which atom is most apt to be protonated? - 3:50
Which atom is most apt in this molecules? - 5:58
What did we learn? - 7:30

Practice this concept - “https://www.khanacademy.org/sc....ience/class-11-chemi


Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.


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Created by Ishani Rathore

Landus Mumbere Expedito
2 Views · 8 hours ago

What happens when you bring two north poles of a magnet close to each other, and what happens when you bring north and a South Pole close to each other? Let's find out!

Khan Academy is a free learning platform for Class 1-12 students with videos, exercises, and tests for maths, science, and more subjects. Our content is aligned to CBSE syllabus and available in Hindi, English, and many more regional languages.

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Created by Vibhor Pandey




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