MYTUTOR SUBJECT ANSWERS

691 views

What's the difference between an aldehyde and a ketone?

Both aldehydes and ketones contain a double bond between carbon and oxygen.

Aldehydes have the double bond at the end of the molecule. That means the carbon at the end of the chain has a double bond to an oxygen atom.

Ketones have the double bond anywhere in the molecule except for the end. That means you will see a double bond to oxygen from one of the carbon atoms in the middle of the chain.

If you've got a solution and you don't know if it's an aldehyde or a ketone, you can use Tollen's Reagent to help. You can add some of the reagent to your solution and if you see a silver colour, there is aldehyde present. Tollen's Reagent has the formula [Ag(NH3)2]NOand it can oxidise aldehydes but not ketones! If you add Tollen's Reagent to a ketone, nothing will happen.

Eleanor M. GCSE Chemistry tutor, A Level Chemistry tutor

2 years ago

Answered by Eleanor, who tutored A Level Chemistry with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

92 SUBJECT SPECIALISTS

£30 /hr

Tabitha E.

Degree: Medicine (Bachelors) - Durham University

Subjects offered:Chemistry, Psychology+ 4 more

Chemistry
Psychology
History
Biology
-Personal Statements-
-Medical School Preparation-

“Hi, I'm Tabby, a medical student at the University of Durham. I would really love to help with anything and everything I can!”

£24 /hr

Tiarnan B.

Degree: MChem (Masters) - York University

Subjects offered:Chemistry, Maths+ 2 more

Chemistry
Maths
Geography
-Personal Statements-

“I am a fun, open and qualified tutor. I guarantee by choosing me you will reach where you want to be and beyond, all while enjoying the subject!”

PremiumFerdinand B. A Level Biology tutor, A Level Chemistry tutor, GCSE Che...
£30 /hr

Ferdinand B.

Degree: Medical Sciences (Bachelors) - Exeter University

Subjects offered:Chemistry, Maths+ 2 more

Chemistry
Maths
French
Biology

“​About me: I'm currently studying Medical Sciences at the University of Exeter. I love this course as it doesn't only incorporate the key biological concepts, but also focuses on the medical application of these. ​I've always had a hu...”

About the author

Eleanor M.

Currently unavailable: until 22/12/2015

Degree: Chemistry (Masters) - Oxford, Jesus College University

Subjects offered:Chemistry

Chemistry

“Hello, my name is Ellie! I’m studying for a Masters in Chemistry at Oxford University, and I’m passionate about making science accessible for all. I love explaining scientific concepts innew, fun and imaginative ways and I hope that w...”

MyTutor guarantee

You may also like...

Posts by Eleanor

How do white blood cells protect the body?

What are polymers and why are they useful?

What are the different forms of elemental carbon?

What is the difference between an alkene and an alkane?

Other A Level Chemistry questions

Describe the 3 types of isomers?

What is the difference between structural isomers and stereoisomers?

What is Le Chatelier's Principle?

How can crude oil be used as a source of hydrocarbons?

View A Level Chemistry tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok