NZQA Level 3 — Calculus
Exam
, NZQA Level 3 — Calculus Exam
Question 1
The feature under examination is percentage purity. Which concept provides its
appropriate grouping?
A. Bond polarity and molecular polarity
B. construction, function of salt bridges, electrode reactions
C. Titration execution, identification of equivalence points, and volumetric calculations
D. ionic, covalent, metallic, and intermolecular forces
Correct Answer: C
Full Explanation:
percentage purity is included within Titration execution, identification of equivalence points, and
volumetric calculations. The associated group also encompasses moles, concentration, mass, molar mass,
so the grouping is based on the stated relationship rather than a superficial word match.
Question 2
An explanation of Identification of specific functional groups leaves its central concern
unaddressed. Which addition would best repair that omission?
A. melting/boiling points, electrical conductivity, hardness, malleability
B. effects of concentration, pressure, temperature, and catalysts on equilibrium systems
C. construction, function of salt bridges, electrode reactions (anode oxidation, cathode reduction),
electron flow, and cell notation
D. $\text{O-H}$ in alcohols/acids, $\text{C=O}$ in aldehydes/ketones/esters, $\text{N-H}$ in amines,
$\text{C=C}$
Correct Answer: D
Full Explanation:
Identification of specific functional groups concerns the following: $\text{O-H}$ in alcohols/acids,
$\text{C=O}$ in aldehydes/ketones/esters, $\text{N-H}$ in amines, $\text{C=C}$. This relationship
identifies the relevant concept and distinguishes it from the alternative areas.
Question 3
A discussion of Achievement Standard 91388: Demonstrate understanding of
spectroscopic data in chemistry has shifted to Synthesis and Polymers. Which concern
would bring it back to the intended focus?
A. Mass Spectrometry (MS)
B. Aqueous Acids and Bases
C. Solubility Equilibria
D. Synthesis and Polymers
Correct Answer: A
Full Explanation:
Achievement Standard 91388: Demonstrate understanding of spectroscopic data in chemistry includes
consideration of Mass Spectrometry (MS). The alternative emphasis, Synthesis and Polymers, belongs with
Achievement Standard 91391: Demonstrate understanding of the properties of organic compounds.
Returning to the intended concern restores the relevant scope of the discussion.
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, NZQA Level 3 — Calculus Exam
Question 4
A case is concerned specifically with the following: chemical shifts, peak integration
(relative number of hydrogen atoms), and spin-spin splitting patterns (multiplicity using
the $n+1$ rule). Which area should receive the closest attention?
A. Reaction conditions, reagents, and observable changes
B. Interpretation of $\text{}^{1}H$ (proton) NMR spectra
C. ionic, covalent, metallic, and intermolecular forces
D. Types of chemical bonding
Correct Answer: B
Full Explanation:
Interpretation of $\text{}^{1}H$ (proton) NMR spectra concerns the following: chemical shifts, peak
integration (relative number of hydrogen atoms), and spin-spin splitting patterns (multiplicity using the
$n+1$ rule). This relationship identifies the relevant concept and distinguishes it from the alternative
areas.
Question 5
Which focus should be retained to keep a discussion of Composition and action of buffer
solutions conceptually accurate?
A. acidic, basic buffers
B. symmetry, vector addition of bond dipoles
C. polyesters, polyamides
D. $K_a$, $pK_a$
Correct Answer: A
Full Explanation:
Composition and action of buffer solutions concerns the following: acidic, basic buffers. This relationship
identifies the relevant concept and distinguishes it from the alternative areas.
Question 6
A discussion of Achievement Standard 91392: Demonstrate understanding of
equilibrium principles in aqueous systems has shifted to linear, trigonal planar,
tetrahedral, trigonal bipyramidal, octahedral, bent, trigonal pyramidal, T-shaped,
square planar, square pyramidal. Which concern would bring it back to the intended
focus?
A. linear, trigonal planar, tetrahedral, trigonal bipyramidal, octahedral, bent, trigonal pyramidal,
T-shaped, square planar, square pyramidal
B. Calculations involving pH, hydronium ion concentration $[\text{H}_3\text{O}^+]$, hydroxide ion
concentration $[\text{OH}^-]$, and $pOH$ for strong and weak species
C. e.g., color changes with acidified potassium permanganate, potassium dichromate, Tollens' reagent, or
Benedict's/Fehling's solution
D. chemical shifts, peak integration (relative number of hydrogen atoms), and spin-spin splitting patterns
(multiplicity using the $n+1$ rule)
Correct Answer: B
Full Explanation:
Achievement Standard 91392: Demonstrate understanding of equilibrium principles in aqueous systems
includes consideration of Calculations involving pH, hydronium ion concentration
$[\text{H}_3\text{O}^+]$, hydroxide ion concentration $[\text{OH}^-]$, and $pOH$ for strong and weak
species. The alternative emphasis, linear, trigonal planar, tetrahedral, trigonal bipyramidal, octahedral,
bent, trigonal pyramidal, T-shaped, square planar, square pyramidal, belongs with Valence Shell Electron
Pair Repulsion (VSEPR) theory to determine molecular shapes and bond angles. Returning to the intended
concern restores the relevant scope of the discussion.
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, NZQA Level 3 — Calculus Exam
Question 7
A discussion of Achievement Standard 91393: Demonstrate understanding of
oxidation-reduction processes has shifted to Nuclear Magnetic Resonance Spectroscopy
(NMR). Which concern would bring it back to the intended focus?
A. Nuclear Magnetic Resonance Spectroscopy (NMR)
B. Oxidation numbers and rules for assignment
C. Markovnikov's rule and Zaitsev's rule
D. bonding, thermodynamics, equilibria, and redox
Correct Answer: B
Full Explanation:
Achievement Standard 91393: Demonstrate understanding of oxidation-reduction processes includes
consideration of Oxidation numbers and rules for assignment. The alternative emphasis, Nuclear Magnetic
Resonance Spectroscopy (NMR), belongs with Achievement Standard 91388: Demonstrate understanding
of spectroscopic data in chemistry. Returning to the intended concern restores the relevant scope of the
discussion.
Question 8
A discussion of Achievement Standard 91388: Demonstrate understanding of
spectroscopic data in chemistry has shifted to acidic and basic buffers. Which concern
would bring it back to the intended focus?
A. acidic and basic buffers
B. Thermochemical Principles
C. Mass Spectrometry (MS)
D. polyesters and polyamides
Correct Answer: C
Full Explanation:
Achievement Standard 91388: Demonstrate understanding of spectroscopic data in chemistry includes
consideration of Mass Spectrometry (MS). The alternative emphasis, acidic and basic buffers, belongs with
Composition and action of buffer solutions. Returning to the intended concern restores the relevant scope
of the discussion.
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Exam
, NZQA Level 3 — Calculus Exam
Question 1
The feature under examination is percentage purity. Which concept provides its
appropriate grouping?
A. Bond polarity and molecular polarity
B. construction, function of salt bridges, electrode reactions
C. Titration execution, identification of equivalence points, and volumetric calculations
D. ionic, covalent, metallic, and intermolecular forces
Correct Answer: C
Full Explanation:
percentage purity is included within Titration execution, identification of equivalence points, and
volumetric calculations. The associated group also encompasses moles, concentration, mass, molar mass,
so the grouping is based on the stated relationship rather than a superficial word match.
Question 2
An explanation of Identification of specific functional groups leaves its central concern
unaddressed. Which addition would best repair that omission?
A. melting/boiling points, electrical conductivity, hardness, malleability
B. effects of concentration, pressure, temperature, and catalysts on equilibrium systems
C. construction, function of salt bridges, electrode reactions (anode oxidation, cathode reduction),
electron flow, and cell notation
D. $\text{O-H}$ in alcohols/acids, $\text{C=O}$ in aldehydes/ketones/esters, $\text{N-H}$ in amines,
$\text{C=C}$
Correct Answer: D
Full Explanation:
Identification of specific functional groups concerns the following: $\text{O-H}$ in alcohols/acids,
$\text{C=O}$ in aldehydes/ketones/esters, $\text{N-H}$ in amines, $\text{C=C}$. This relationship
identifies the relevant concept and distinguishes it from the alternative areas.
Question 3
A discussion of Achievement Standard 91388: Demonstrate understanding of
spectroscopic data in chemistry has shifted to Synthesis and Polymers. Which concern
would bring it back to the intended focus?
A. Mass Spectrometry (MS)
B. Aqueous Acids and Bases
C. Solubility Equilibria
D. Synthesis and Polymers
Correct Answer: A
Full Explanation:
Achievement Standard 91388: Demonstrate understanding of spectroscopic data in chemistry includes
consideration of Mass Spectrometry (MS). The alternative emphasis, Synthesis and Polymers, belongs with
Achievement Standard 91391: Demonstrate understanding of the properties of organic compounds.
Returning to the intended concern restores the relevant scope of the discussion.
20391 2
, NZQA Level 3 — Calculus Exam
Question 4
A case is concerned specifically with the following: chemical shifts, peak integration
(relative number of hydrogen atoms), and spin-spin splitting patterns (multiplicity using
the $n+1$ rule). Which area should receive the closest attention?
A. Reaction conditions, reagents, and observable changes
B. Interpretation of $\text{}^{1}H$ (proton) NMR spectra
C. ionic, covalent, metallic, and intermolecular forces
D. Types of chemical bonding
Correct Answer: B
Full Explanation:
Interpretation of $\text{}^{1}H$ (proton) NMR spectra concerns the following: chemical shifts, peak
integration (relative number of hydrogen atoms), and spin-spin splitting patterns (multiplicity using the
$n+1$ rule). This relationship identifies the relevant concept and distinguishes it from the alternative
areas.
Question 5
Which focus should be retained to keep a discussion of Composition and action of buffer
solutions conceptually accurate?
A. acidic, basic buffers
B. symmetry, vector addition of bond dipoles
C. polyesters, polyamides
D. $K_a$, $pK_a$
Correct Answer: A
Full Explanation:
Composition and action of buffer solutions concerns the following: acidic, basic buffers. This relationship
identifies the relevant concept and distinguishes it from the alternative areas.
Question 6
A discussion of Achievement Standard 91392: Demonstrate understanding of
equilibrium principles in aqueous systems has shifted to linear, trigonal planar,
tetrahedral, trigonal bipyramidal, octahedral, bent, trigonal pyramidal, T-shaped,
square planar, square pyramidal. Which concern would bring it back to the intended
focus?
A. linear, trigonal planar, tetrahedral, trigonal bipyramidal, octahedral, bent, trigonal pyramidal,
T-shaped, square planar, square pyramidal
B. Calculations involving pH, hydronium ion concentration $[\text{H}_3\text{O}^+]$, hydroxide ion
concentration $[\text{OH}^-]$, and $pOH$ for strong and weak species
C. e.g., color changes with acidified potassium permanganate, potassium dichromate, Tollens' reagent, or
Benedict's/Fehling's solution
D. chemical shifts, peak integration (relative number of hydrogen atoms), and spin-spin splitting patterns
(multiplicity using the $n+1$ rule)
Correct Answer: B
Full Explanation:
Achievement Standard 91392: Demonstrate understanding of equilibrium principles in aqueous systems
includes consideration of Calculations involving pH, hydronium ion concentration
$[\text{H}_3\text{O}^+]$, hydroxide ion concentration $[\text{OH}^-]$, and $pOH$ for strong and weak
species. The alternative emphasis, linear, trigonal planar, tetrahedral, trigonal bipyramidal, octahedral,
bent, trigonal pyramidal, T-shaped, square planar, square pyramidal, belongs with Valence Shell Electron
Pair Repulsion (VSEPR) theory to determine molecular shapes and bond angles. Returning to the intended
concern restores the relevant scope of the discussion.
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, NZQA Level 3 — Calculus Exam
Question 7
A discussion of Achievement Standard 91393: Demonstrate understanding of
oxidation-reduction processes has shifted to Nuclear Magnetic Resonance Spectroscopy
(NMR). Which concern would bring it back to the intended focus?
A. Nuclear Magnetic Resonance Spectroscopy (NMR)
B. Oxidation numbers and rules for assignment
C. Markovnikov's rule and Zaitsev's rule
D. bonding, thermodynamics, equilibria, and redox
Correct Answer: B
Full Explanation:
Achievement Standard 91393: Demonstrate understanding of oxidation-reduction processes includes
consideration of Oxidation numbers and rules for assignment. The alternative emphasis, Nuclear Magnetic
Resonance Spectroscopy (NMR), belongs with Achievement Standard 91388: Demonstrate understanding
of spectroscopic data in chemistry. Returning to the intended concern restores the relevant scope of the
discussion.
Question 8
A discussion of Achievement Standard 91388: Demonstrate understanding of
spectroscopic data in chemistry has shifted to acidic and basic buffers. Which concern
would bring it back to the intended focus?
A. acidic and basic buffers
B. Thermochemical Principles
C. Mass Spectrometry (MS)
D. polyesters and polyamides
Correct Answer: C
Full Explanation:
Achievement Standard 91388: Demonstrate understanding of spectroscopic data in chemistry includes
consideration of Mass Spectrometry (MS). The alternative emphasis, acidic and basic buffers, belongs with
Composition and action of buffer solutions. Returning to the intended concern restores the relevant scope
of the discussion.
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