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- 1. Multiple Choice
Name the organic family for this structure:alkanesalkenesalkynesaromatics - 2. Multiple ChoiceThe "ane" ending in "alkane" tells someone that they are dealing with _________-bonded carbons.singledoubletriplequadruple
- 3. Multiple ChoiceGive the name of this compound...
C3H8PropeneButyneButenePropane - 4. Multiple Choice
Alkane general formula
CnH2n+2
CnH2n
- 5. Multiple Choice
A chain of repeating units (called monomers)
monomer
dimer
replicate
polymer
- 6. Multiple ChoiceWhat liquid detects the presence of an alkene?Alkene waterBromine waterWaterLimewater
- 7. Multiple ChoiceThe longer the hydrocarbon, the _______ the boiling pointLowerHigher
- 8. Multiple Choice
What is a monomer?
Many molecules that can undergo polymerisation
A single molecule that can undergo polymerisation
A type of polymer
A fraction
- 9. Multiple Choice
Why are alkanes classed as saturated molecules?
They have double bonds
They have tripled bonds
They dont have any bonds
They have single bonds
- 10. Multiple Choice
Which of these molecules are named ethanoic acid
- 11. Multiple Choice
What is the correct name for this molecule?
2,5-dimethylhexane
2,5-methylhexanoic acid
2,5-dimethylhexanoic acid
2,5-dimethylhexan-6-oic acid
- 12. Multiple Choice
Is the carboxyl carbon always carbon number 1?
Yes
No
- 13. Multiple Choicename this diagram:ethanolethanoic acidmethyl methanoate
- 14. Multiple ChoiceWhat is wrong with the following name:
2-2,chloro butaneposition of the dashposition of the commaspace between wordsall of the above - 15. Multiple ChoiceWhat is the functional group shown?AlcoholCarboxylic AcidEster
- 16. Multiple ChoiceThe products of the reaction of carboxylic acid and an primary alcohol in the presence of sulfuric acid aresalt and waterester and wateracid and a basesmelly
- 17. Multiple ChoiceName the molecule pictured herePentanoate1-pentanoatePentanoic acid1-pentanoic acid
- 18. Multiple ChoiceWhat is the functional group shown?AlcoholCarboxylic AcidEster
- 19. Multiple ChoiceName the molecule pictured hereButyl ethanoateEthyl butanoateButylethan-1-oateEthylbutan1-oate
- 20. Multiple ChoiceName the molecule pictured hereEthoxy 2-methylhexanoic acidEthyl 5-methylhexanoateEthyl 2-heptanoateEthyl 2-methylhexanoate
- 21. Multiple ChoiceName the molecule pictured here2,3,4-trifluorobutanoic acid1,2,3-trifluorobutanoic acid2,3,4-triflourobutanoate1,2,3-trifluorobutanoate
- 22. Multiple ChoiceWhich carboxylic acid and which alcohol came together to form the ester pictured here?Butanol and ethanoic acidEthanol and butanoic acid
- 23. Multiple ChoiceEquilibrium for 2CrO42- + 2H+ → Cr2O72- + H2O. What happen when H+ ion are added to the system?Position of equilibrium will shift to leftColor of system will turn from orange to yellowKc will be higherEquilibrium will shift to right to decrease the added H+ ion
- 24. Multiple ChoiceFor N2O4 (colorless) → 2NO2 (brown). What happens when pressure is increased?Position of equilibrium will shift to rightColor of system will turn from colorless to brownKc will not changePosition of equilibrium will not change
- 25. Multiple ChoiceThe bond that joins amino acids are called:Peptide BondsEster BondsGlycosidic LinkagesPhosphodiester Bonds
- 26. Multiple Choice
In a Galvanic Cell, the anode is...
positive
negative
- 27. Multiple Choice
Oxidation occurs at the...
anode
cathode
- 28. Multiple Choice
Reduction occurs at the...
anode
cathode
- 29. Multiple Choice
Ecell =
Ered - Eox
Ered + Eox
Eox - Ered
Eox + Ered
- 30. Multiple Choice
In a Galvanic Cell, the salt bridge...
completes the circuit so that electrons can flow through the wire
maintains charge balance
is soaked in an unreactive electrolyte such as KNO3
all of the above
- 31. Multiple Choice
In the above Galvanic Cell, which half cell is undergoing reduction?
Cu | Cu2+
Zn | Zn2+
- 32. Multiple Choiceamineketoneamidecarboxylic acid
- 33. Multiple Choiceamineketonecarboxylic acidether
- 34. Multiple Choiceamideketonecarboxylic acidamine
- 35. Multiple Choice
What functional group is shown?
amino
hydroxyl
carboxyl
sulfhydryl
- 36. Multiple Choice
What functional group is shown?
carboxyl
carbonyl
hydroxyl
amino
- 37. Multiple ChoiceCombines with 3 fatty acid chains to make up a triglyceride; part of the monomer of lipidsAmino AcidFatty AcidGlycerolNucleotide
- 38. Multiple Choice
Which functional group is represented by the general formula shown?
Aldehydes
Carboxylic Acids
Ketones
Ethers
- 39. Multiple Choice
Which functional group is represented by the general formula shown?
Aldehydes
Carboxylic acids
Ketones
Ethers
- 40. Multiple Choice
Identify the class of chemical.
Nitrile
Amide
Amine
Amino acid
- 41. Multiple Choice
What is produced by a hydrogen-oxygen fuel cell?
Water and Carbon Dioxide
Carbon Dioxide
Water
- 42. Multiple Choice
During electrolysis of molten sodium chloride what products would you expect at the anode and cathode?
Sodium metal and chlorine gas
Hydrogen gas and chlorine gas
Sodium metal and hydrogen gas
Hydrogen gas and oxygen gas
- 43. Multiple Choice
The pH scale is a logarithmic scale, how many times more concentrated is an acid with a pH of 1 compared to one with a pH of 4?
x10
x4
x40
x1000
- 44. Multiple Choice
What is oxidation? (2 correct answers)
The gain of oxygen
The loss of oxygen
The loss of electrons
The gain of electrons
- 45. Multiple Choice
What is the pH at the equivalence point.
The pH is approximately 5
The pH is approximately 6
The pH is approximately 8
The pH is approximately 9
- 46. Multiple ChoiceIn which of the following reactions does H2PO4- act as an acid?H3PO4 + H2O --> H3O+ + H2PO4-H2PO4- + H2O --> H3O+ + HPO42-H2PO4- + OH- --> H3PO4 + O2-The ion cannot act as an acid
- 47. Multiple ChoiceWhich type of titration is shown by this titration curve?Titration of a strong acid by a strong baseTitration of a weak acid by a strong baseTitration of a strong base by a strong acidTitration of a weak base by a strong acid
- 48. Multiple ChoiceI have 25mL of 1M HCl which neutralises 20mL of NaOH. What is the concentration of the NaOH?0.8 M1 M1.25 M
- 49. Multiple ChoiceIdentify the strongest acidHCNH2OCH3OHHNO3
- 50. Multiple ChoiceWhich acid base pair produce the titration curve shown below?HCI + KOHHCI + NH3CH3COOH + KOHCH3COOH + NH3
- 51. Multiple Choice
What is the function of SDS buffer in vertical electrophoresis?
to track the passage of the sample
it will denature proteins
a reducing agent
to increase the density of the sample
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