Ochem

Question 1

3 rules or resonance structures

Answer 1

1. Obeys octet rule
2. Fewest formal charges
3. Neg charge on most electronegative atoms

Question 2

Nucleophile trends

Answer 2

1 When comparing the same atom a negative charge shows stronger nucleophile
2 atoms In the same period, Less electronegative or more nucleophilic
3. Nucleophilicity increases with size in a column

Question 3

Good leaving groups

Answer 3

1.Resonance stabilized
2. Week bases
3.  neutral Leaving groups (h2O, ROH)

Question 4

Bad bases

Answer 4

1. Strong bases
2. Acid catalysis can make a bad leaving group a good leaving group.

Question 5

4 factors of molecular stability

Answer 5

1. Resonance
2. Induction
3. Size
4. Electronegativity

Question 6

Ir peak for c=o

Answer 6

1700

Question 7

Ir peak for o-H

Answer 7

3200-3600

Question 8

Ir peak for c=c

Answer 8

1650

Question 9

Ir peak for C triple bond C/N

Answer 9

2100-2600