Basic Concepts Organic Chemistry

Question 1

Why might a straight chain isomer have a higher boiling point than a branched isomer ?

Answer 1

Boiling point higher (B)
Straight chain has more surface contact between chains (S)
Therefore more induced dipole - dipole forces between molecules (I D)
Therefore, a higher boiling point ( H)
(Burgers Sizzle In Direct Heat)

Question 2

State equation for ‘ Atom Economy ‘

Answer 2

A . E = (mr of desired products)
(mr of all reactants) x 100

Question 3

Define ‘ Nucleophile ‘

Answer 3

Species with a lone pair of electrons
Attacks electron DEFICIENT regions (delta +)

Question 4

Define ‘ Structural Isomer ‘

Answer 4

Same general formula, different structural formula/different arrangement of atoms

Question 5

What is the ‘ Absorption of radiation ‘ ?

Answer 5

Covalent bonds taking in radiation
Vibrating more