Corrections Flashcards
1
Q
why does phenol react more readily than benzene
A
- lone pair of electrons on -OH from O delocalise in the π system
- increasing electron density making it more susceptible to electrophilic attack
2
Q
limitations of free radical substitution (2)
A
- mixture of products are formed
- substitutions happens at different postitions along the chain
3
Q
define stereoisomer
A
same structural formula but diff arrangements of atom in space
4
Q
equation for △solution
A
△S = △latt + △hyd
5
Q
equation for △lattice
A
△latt = △f - △everything else
6
Q
monobasic acid
A
One mole of acid donates/dissociates to form one mole of protons/H+
7
Q
why is an oxygen atom smaller than nitrogen atom (4)
q
A
- O has more protons than N
- electrons are in the same shell so similar shielding
- stronger attraction between protons and electrons
- shells drawn in by inc nuclear charge therefore smaller
8
Q
general trend of FIE across period (4)
A
- FIE increases across period
- atomic radius increases
- nuclear charge increases
- shielding remains the same
9
Q
avg bond ethalpy
A
Σreactants - Σproducts
10
Q
conditions for a reaction to occur (3)
A
- particles collide
- with enough energy
- in the correct orientation
11
Q
I2 / Cu ionic equation
A
4I- + 2Cu2+ –> CuI + I2
