Chemistry CH4 - THINGS I KEEP FORGETTING

?
Shape of a molecule with 3 bond pairs and one lone pair?
Pyramidal.
1 of 6
Resonance/delocalisation energy
The difference in enthalpy of hydrogenation values for Kekule's benzene and real benzene. It indicates towards the extra stability of the delocalised Pi electron system in actual benzene.
2 of 6
Importance of the nucleophilic addition reactions between aldehydes/ketones and the nucleophile CN-?
The reaction increases the chain length and introduces chirality.
3 of 6
Brady's reagent can be used to identify the specific aldehyde/ketone present by determining the specific melting point of the orange precipitate it forms. What is this process called?
Derivatisation.
4 of 6
Conditions for friedal crafts alkylation of benzene?
Chloroalkane, aluminum chloride, reflux (NOT ANHYDROUS).
5 of 6
Conditions for the reaction between HCl and an alcohol?
HCl gas, anhydrous zinc chloride.
6 of 6

Other cards in this set

Card 2

Front

Resonance/delocalisation energy

Back

The difference in enthalpy of hydrogenation values for Kekule's benzene and real benzene. It indicates towards the extra stability of the delocalised Pi electron system in actual benzene.

Card 3

Front

Importance of the nucleophilic addition reactions between aldehydes/ketones and the nucleophile CN-?

Back

Preview of the front of card 3

Card 4

Front

Brady's reagent can be used to identify the specific aldehyde/ketone present by determining the specific melting point of the orange precipitate it forms. What is this process called?

Back

Preview of the front of card 4

Card 5

Front

Conditions for friedal crafts alkylation of benzene?

Back

Preview of the front of card 5
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