R3.3 Electron sharing reactions Questionbank

Negative charge

Positive charge

Symmetrical distribution of electrons

Lone pair of electrons

−1

0

−2

+1

covalent bonds < hydrogen bonds < dipole–dipole forces < dispersion forces

dipole–dipole forces < dispersion forces < hydrogen bonds < covalent bonds

dispersion forces < dipole–dipole forces < hydrogen bonds < covalent bonds

dispersion forces < dipole–dipole forces < covalent bonds < hydrogen bonds

1,2,3-trimethylpent-3-ene

3,4,5-trimethylpent-3-ene

2,4,5-trimethylhex-4-ene

2,3,5-trimethylhex-2-ene

$CCl_2F_2 \rightarrow CClF_2^+ + Cl^-$

$CCl_2F_2 \rightarrow \bullet CClF_2 + Cl \bullet$

$CCl_2F_2 \rightarrow CCl_2F^+ + F^-$

$CCl_2F_2 \rightarrow \bullet CCl_2F + F \bullet$

A reaction in which electrons are transferred from one atom to another.

A reaction that involves the formation of ionic bonds.

A reaction where atoms share pairs of electrons to form covalent bonds.

A reaction that occurs only in metals.

$(CH_3)_2NH$

$(C_2H_5)_4NI$

$C_3H_7N(CH_3)_2$

$C_6H_5NH_2$

$CO_2$

$OH^−$

$H_2CO$

$CO_3^{2−}$