Basic concepts and alkanes

Question 1

lack of reactivity of alkanes

Answer 1

• small difference in electronegativity between carbon and hydrogen.
• c-c bonds and c-H bonds are strong/ have high bond enthalpy.

Question 2

Branching effects BP

Answer 2

Branched molecules can not pack together as tightly, less points of contact, weaker london forces.

Question 3

3 stages of Free Radical Substitution

Answer 3

☆initiation
☆ propogation
☆ termination

Question 4

FRS pattern

Answer 4

☆ non radical 》radical + radical
☆ non radical + non radical 》 radical +non radical
☆radical +radical 》 non radical

Question 5

where does a curly arrow always go from?

Answer 5

A bond or a lone pair
(electron dense areas).