1. QUIZ #2

2. Question 1 Catalytic cracking is a process in which:
small hydrocarbons are joined to make a polymer
heat and/or a catalyst is used to break large hydrocarbons into smaller ones
ethylene is separated from crude oil
Bonds between hydrocarbon molecules are broken b)

3. Questions 2 and 3 2. The catalyst used for dehydration of ethanol is :
A transition metal catalyst
Dilute sulfuric acid
Concentrated sulfuric acid
Bromine water
3. Write the chemical equation for this reaction c)
C2H5OH(g) → C2H4(g) + H2O(g)

4. Question 4 Name the following alkanols: CH3CH2CH2OH b)
c) d) CH2OHCHOHCH3
1-Propanol
5-bromo – 1- pentanol
2-methyl-2-propanol
1,2 -propanediol

5. Question 5 Name the following alcohols and identify them as
primary, secondary or tertiary alcohols:
a) c)
b) d)
Secondary 2-butanol
Secondary, 3-methyl-2-butanol
Primary 3-methyl-1-butanol
Tertiary, 2-methyl-2-butanol

6. Question 6 How would you prepare the following: 2-chloropentane
1, 2 dichloropentane
2-propanol
a) Alkene + hydrogen halide, 2-pentene + HCl
b) Alkene + halogen, 1-pentene + Cl2
c) Alkene + water in presence of acidic catalyst, propene + water

7. Question 7 An alkyl group is defined as: A group of atoms
derived from an alkane by the removal of one
hydrogen atom.
Ex: methyl H
H C H
Name and give a formula for the next three alkyl
groups.
Ethyl CH3CH2
Propyl CH3CH2CH2
Butyl CH3CH2CH2CH2

8. Question 8 What types of compounds dissolve in ethanol?
Give a specific example.
Polar and non-polar substances
Water, hexane

9. Question 9 Calculate the molar mass for each of the following: Methane
Water
16.032g
30.48g
18.016g

10. Question 10
During a chemical reaction chemical bonds are broken and this will (release/use) energy.
During a chemical reaction new bonds are formed and this will (release/use) energy.
In an exothermic reaction the energy in the reactants is (less/greater) than the energy present in the products
In an endothermic reaction the energy in the reactants is (less/greater) than the energy present in the products
use
release
greater
less