Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Carbonyl Groups

Esters and Keytones.

QuestionAnswer
What is the name given to the C=O group in organic chem? It is called an Carbonyl group.
How are Aldehydes formed? Through the oxidation of Primary alcohols, under distillation with weak acid catalyst.
How are Keytones formed? Oxidation of Secondary Alcohols.
How can we distinguish between Aldehyde and Keytones? Tollens Reagent, the silver mirror test. Aldehydes will be oxidised to Carboxcylic Acids which forms a silver mirror and the Keytones will not react at all.
How do the boiling points of compounds with the C=O bond differ from Alkanes with similar masses: They will have higher boiling points because the C=O bond is polar and there will be Dipole-Dipole attractions between the molecules.
Comment on the solubility of Keytones and Aldehydes: The C=O bond is capable of forming hydrogen bonds between the H2O molecules making them fairly soluble, with shorter chained ones being more soluble.
What is the most common reaction mechanism for Aldehydes and Keytones? Nucelophilic Addition, the C=O is polar which allows for attack from Nucelophiles and also the double bond is open to addition.
Give an example of a Nucleophilic Addition reaction with an Aldehyde: Reaction of Potassium Cyanide (KCN) with an aldehyde, this will produce a HydroxyNitrile and the carbon chain length will have increased by 1.
Why isn't HCN used commonly in a lab: HCN is a gas at room temp and will be difficult to control, the CN- ion is very dangerous, interfering with Enzymes responsible for respiration.
Created by: mjwilson1988
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards