WorksheetsChemistry Quiz
Total questions: 15
Worksheet time: 8mins
The number of moles of oxygen atoms in 1 mole of Ca(NO₃)₂ is
2
3
6
8
For the reaction N₂(g) + 3H₂(g) ⇌ 2NH₃(g), an increase in pressure will
favor the reverse reaction
favor the forward reaction
have no effect
stop the reaction
During electrolysis of CuSO₄ solution using copper electrodes, the reaction at the anode is
Cu²⁺ + 2e⁻ → Cu
4OH⁻ → 2H₂O + O₂ + 4e⁻
Cu → Cu²⁺ + 2e⁻
2H⁺ + 2e⁻ → H₂
The process by which an element spontaneously disintegrates due to instability of its nucleus is called
radioactivity
fission
fusion
transmutation
The IUPAC name for CH₃-CH(CH₃)-CH₂-CH₃ is
2-methylbutane
3-methylbutane
pentane
isopentane
A compound that gives a sweet, fruity smell when heated with ethanol and concentrated H₂SO₄ is likely to be
an alkane
an aldehyde
an ester
a ketone
The monomer of natural rubber is
isoprene
ethylene
styrene
vinyl chloride
The depletion of the ozone layer is mainly caused by
carbon dioxide
chlorofluorocarbons (CFCs)
sulphur dioxide
nitrogen dioxide
The enthalpy change for the reaction C(s) + O₂(g) → CO₂(g) is the enthalpy of
formation of CO₂
combustion of carbon
neutralization
solution
A catalyst remains unchanged at the end of a reaction in terms of its
mass and chemical composition
physical state only
mass only
chemical composition only
The IUPAC name for CH₃CH₂CH₂CH₂CH₂OH is
pentan-1-ol
butan-1-ol
propan-1-ol
hexan-1-ol
In qualitative analysis, the group I cation is precipitated as
chlorides
sulphides
hydroxides
carbonates
The process of converting starch to ethanol involves
Esterification
Fermentation
Cracking
Polymerization
Nylon is an example of a
Thermosetting polymer
Natural polymer
Condensation polymer
Protein
The primary cause of acid rain is the presence in the atmosphere of high levels of
Carbon monoxide and carbon dioxide
Sulphur (IV) oxide and nitrogen (IV) oxide
Oxygen and nitrogen
Hydrogen sulphide and chlorine
