Question

Question 1

Cu + HNO3 → Cu2+ + NO2 + H2O
State which reactant was oxidised and which was reduced?

Question 2

Give the oxidation numbers for each element in the following compounds.
a)Li2Cr2O7
b) H2SO4
c) NaOH
d) HNO2
e) N2
f) NH3

Question 3
a) Draw the general structure for an alcohol and then draw a possible structure for propanol. Highlight and name the functional group involved.

b) Draw the general structure for a carboxylic acid and then draw a possible structure for butanoic acid. Highlight the functional group.

c) Draw the general structure for a ketone.

d) Draw the general structure for an amine.

e) Name the following compound.

f) Name the following compound.

g) Name the following compound.

h) What is the group name for the following compound?

Question 4
Nylon is made by reacting the following two compounds:

a) Name the functional groups the two reactants contain.
b) Both compounds have 6 carbon atoms in their carbon backbone. What is the name for a hydrocarbon containing 6 carbon atoms?
c) What is the name for a 6 carbon molecule that contains a double bond?
d) Name a common biological compound that contains both the functional groups present in the compounds that make nylon.

Answer 1

Post 1 question at a time.

For Question 1

"Cu + HNO3 → Cu2+ + NO2 + H2O
State which reactant was oxidised and which was reduced?"

assign oxidation states to all the atoms. compare the change in oxidation state from the left to the right side.

Atoms that become more negative in oxidation state are reduced (e.g. 0 to -1, 3 to 1)
Atoms that become less negative in oxidation state are oxidized (e.g. -1 to 0, 1 to 3)