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Chemistry
A Level

Describe the Kekule and delocalised model of benzene and explain some of the reasons why the kekule is disproved

Kekule Model - 6 membered carbon ringComposed of carbon atoms joined together by alternating single and double bonds
Delocalised Model - A planr cyclic hydrocarbon composed of 6 carbon atoms and 6 hy...

Answered by Muhammad S. Chemistry tutor
3009 Views

What is the mechanism for nucleophilic addition reactions at carbonyls?

The carbonyl bond is polar as the oxygen atom is more electronegative than the carbon atom. This results in a partial positive charge on the carbon and a partial negative charge on the oxygen. A nucleophi...

Answered by Louise O. Chemistry tutor
2013 Views

How do you deal with remembering all the knowledge required for organic chemistry questions?

You should organise your knowledge by separating synthetic routes into categories, for example: drawing the synthetic pathways of benzenes separately to those of phenols. You should then make posters or f...

Answered by Kess R. Chemistry tutor
2307 Views

What is Chatelier's principle?

Le Chateliers principle states:The position of the equilibrium of a system changes to minimise the effect of any imposed change in conditions.This principle applies to any reaction that is in equilibrium....

Answered by Archie M. Chemistry tutor
1843 Views

Draw the structure of chlorine pentafluoride (ClF5) according to the VSEPR theory

The molecule is uncharged, so we can find that chlorine is in its +5 oxidation state. Since there are 5 Cl-F bonds, there are 5 bonding electron pairs around the central Cl atom. We also know that chlorin...

Answered by Peter S. Chemistry tutor
12664 Views

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