WorksheetsHigher Chemistry Unit 1 + 2 MC
Total questions: 25
Worksheet time: 50mins
The table shows the first three ionisation energies of aluminium.
Using this information, what is the enthalpy change, in kJ mol⁻¹ , for the following reaction?
Al⁺ (g) → Al³⁺ (g) + 2e⁻
1817
2395
4562
5140
An element contains covalent bonding and London dispersion forces.
The element could be
boron
neon
sodium
sulfur
Erythrose is a chemical that is known to kill cancer cells.
The two functional groups present in erythrose are
carboxyl and ester
carbonyl and ester
carbonyl and hydroxyl
carboxyl and hydroxyl.
The name of the above compound is
2,2,3-trimethylbutanoic acid
2,3,3-trimethylbutanoic acid
1,1,2,2-tetramethylpropanoic acid
2,2,3,3-tetramethylpropanoic acid.
Which of the following is an isomer of pentan-3-ol?
CH₃CH₂CH(OH)CH₂CH₃
CH₃CHCHCH₂CH₂OH
CH₃CHCHCH(OH)CH₃
CH₃CH(CH₃)CH₂CH₂OH
Essential amino acids are defined as the amino acids which
are necessary for building proteins
humans must acquire through their diet
plants cannot synthesise for themselves
are produced when any protein is hydrolysed.
A mixture of carbon monoxide and hydrogen can be converted into water and a mixture of hydrocarbons.
n CO + (2n + 1) H₂ → n H₂O + hydrocarbons
What is the general formula for the hydrocarbons produced?
SO₃²⁻+ H₂O → SO₄²⁻ + 2H⁺ + 2e⁻
Which of the following ions could be used to oxidise sulfite ions to sulfate ions?
Cr³⁺
Al³⁺
Fe³⁺
Sn⁴⁺
During a redox reaction nitrate ions, NO³⁻ , are converted to nitrogen monoxide, NO.
NO³⁻ → NO
Which line in the table correctly completes the ion-electron equation?
A
B
C
D
Hydrogen will form a non-polar covalent bond with an element that has an electronegativity value of
0.9
1.5
2.2
2.5
Which of the following is a polar molecule?
CCl₄
NH₃
CO₂
CH₄
Which of the following is most likely to act as a reducing agent?
CO
MnO₄⁻
H₂O₂
Cr₂O₇²⁻
The following reactions take place when nitric acid is added to zinc.
NO₃⁻ (aq) + 4H⁺ (aq) + 3e⁻ → NO(g) + 2H₂O(ℓ)
Zn(s) → Zn²⁺ (aq) + 2e⁻
How many moles of Zn(s) are oxidised by one mole of NO₃⁻ (aq)?
0.67
1.0
1.5
2.0
Which of the following compounds is a tertiary alcohol?
2,2-dimethylpropan-1-ol
2-methylbutan-2-ol
pentan-3-ol
3-methylbutan-2-ol
A compound with molecular formula C6H12O2 could be
pentyl ethanoate
hexan-2-one
3-methylpentan-2-ol
hexanoic acid.
Compound X reacted with hot copper(II) oxide and the resulting product did not give a colour change when heated with Fehling’s solution.
Compound X could be
pentan-1-ol
pentan-2-ol
pentan-3-one
pentanoic acid.
Which reaction can be classified as reduction?
methanol → methanoic acid
propanal → propanoic acid
butan-2-one → butan-2-ol
propan-2-ol → propanone
Which of the following bonds is the least polar?
C — I
C — F
C — Cl
C — Br
Which type of structure is found in phosphorus?
Covalent network
Covalent molecular
Monatomic
Metallic lattice
Molecule X has the structure above.
Which of the following could be produced by partial hydrolysis of X?
The structure of pivalic acid is shown.
Which of the following is the correct systematic name of pivalic acid?
pentanoic acid
2,2,2-trimethylethanoic acid
2-ethylpropanoic acid
2,2-dimethylpropanoic acid
The table shows four compounds that contribute to the aroma of spices. Which compound is not derived from a terpene?
A
B
C
D
A secondary amine has two carbon atoms directly bonded to the nitrogen atom.
Which of the following is a secondary amine?
In which of the following diagrams does the dotted line represent a permanent dipole-permanent dipole interaction between propanone molecules?
Alkenes react with ozone, O3, to form ozonides which can be decomposed to give carbonyl compounds.
Which of the following alkenes would produce a mixture of ethanal and propanone?
