Which one of the following would be classed as a weak, diprotic acid?
2021 Year 12 Chemistry Alternate Task

Quiz
•
Science, Chemistry
•
12th Grade
•
Hard
Iskandra Hanson
Used 8+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
H2SO4 (aq)
H2CO3 (aq)
HCOOH (aq)
CH2(OH)CH2OH (aq)
2.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
A student is told that an unlabelled solution may contain one or more nitrate salts of Mg2+, Pb2+ and/or Ba2+.
They are required to determine which cation/s are present in the solution and are provided with several solid ionic compounds for this analysis.
Which compound below, when added to water, would form an effective reagent for the first step in this analysis?
silver chloride
potassium chloride
lithium sulfate
copper (II) sulfate
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The structure of a compound is shown above.
What is the preferred IUPAC name of this compound?
2-hydroxyheptan-5-one
5-oxo-heptan-2-ol
heptan-2-ol-5-one
6-hydroxyheptan-3-one
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
An infrared spectrum is shown above.
Which compound gives rise to this spectrum?
hexan-1-ol
hexan-2-one
hexanal
hexanoic acid
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
“X” is prepared from a reaction of “Y” and “Z” as described in the following equation.
Y(g) + Z(g) <-> 3X (g)
Which set of conditions would optimise the rate at which X (g) is initially produced?
High pressure, high temperature.
Low pressure, low temperature.
High pressure, low temperature.
Low pressure, high temperature.
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
The curve above shows the change in pH vs the volume of solution added from a burette during an acid-base titration.
Which alternative identifies the type of solution present in the conical flask and burette during this titration.
Solution in conical flask: Strong base
Solution in burette: Strong acid
Solution in conical flask: Weak base
Solution in burette: Strong acid
Solution in conical flask: Weak acid
Solution in burette: Weak base
Solution in conical flask: Strong acid
Solution in burette: Weak base
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
How many signals does the compound shown above produce in its 1H NMR and 13C NMR spectra?
1H NMR spectra: 5
13C NMR spectra: 6
1H NMR spectra: 6
13C NMR spectra: 6
1H NMR spectra: 6
13C NMR spectra: 7
1H NMR spectra: 5
13C NMR spectra: 7
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