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- 1. Multiple Choice
Only certain metals will react with an acid because...
They must be more reactive than hydrogen in the reactivity series
The must be less reactive than hydrogen in the reactivity series
They must be more reactive than carbon in the reactivity series
Metals cannot react with acid
- 2. Multiple Choice
The oxide of element X is reduced by heating with carbon.
Element X does not react with cold water, steam or dilute hydrochloric acid. What is X?
copper
iron
magnesium
zinc
- 3. Multiple Choice
Which substance is not involved in the extraction of iron from hematite?
carbon
carbon monoxide
calcium carbonate
nitrogen
- 4. Multiple Choice
M is a shiny silver metal. It has a melting point of 1455oC. Many of its compounds are green.
What is metal M?
aluminium
copper
mercury
nickel
- 5. Multiple Choice
Equations P and Q represent 2 reactions which occur inside a blast furnace.
P: Fe2O3 + 3CO --> 2Fe + 3CO2
Q: CaCO3 --> CaO+ CO2
What types or reactions are P and Q?
P: Redox, Q: Redox
P: Redox, Q: Thermal decomposition
P: Thermal decomposition, Q: Redox
P: Thermal decomposition, Q: Thermal decomposition
- 6. Multiple Choice
Which property is shown by all metals?
They are extracted from their ores by heating with carbon
They conduct electricity
They form acidic oxides
They react with hydrochloric acid to form hydrogen
- 7. Multiple Choice
Which change is an oxidation?
FeO to Fe2O3
Fe2O3 to FeO
H2O2 to H2O
H2O to H2
- 8. Multiple Choice
Which acid reacts with ammonia to produce the salt ammonium sulfate?
hydrochloric
nitric
phosphoric
sulfuric
- 9. Multiple Choice
Which property is NOT characteristic of a base?
It reacts with carbonate to form carbon dioxide
It reacts with an acid to form a salt
It reacts with an ammonium salt to form ammonia
It turns universal indicator paper blue
- 10. Multiple Choice
A gas is escaping from a pipe in a chemical plant. A chemist tests this gas and finds that it is alkaline.
What is this gas?
ammonia
chlorine
hydrogen
sulfur dioxide
- 11. Multiple Choice
Which equation represents a reduction reaction?
Fe2+ + e- --> Fe3+
Fe2+ --> Fe3+ + e-
Fe3+ + e- --> Fe2+
Fe3+ --> Fe2+ + e-
- 12. Multiple Choice
The rate of reaction depends on temperature, concentration, particle size and catalysts.
Which statement is not correct?
Catalysts can be used to increase the rate of reaction
Higher concentration decreases the rate of reaction
Higher temperature increases the rate of reaction
Large particle size decreases the rate of reaction
- 13. Multiple Choice
Which metal could not be used for electroplating by using an aqueous solution?
chromium
copper
silver
sodium
- 14. Multiple Choice
Which method is most suitable to obtain magnesium nitrate from water?
crystallisation
distillation
evaporation
filtration
- 15. Multiple Choice
In which compounds are pairs of electrons shared between atoms?
- methane
- lead bromide
- sodium chloride
1 only
2 only
1 & 3
1,2, and 3
- 16. Multiple Choice
In the molecules of CH4, HCl, and H2O, which atoms use all of their outershell electrons in bonding?
C and Cl
C and H
Cl and H
H and O
- 17. Multiple Choice
Three electrolysis cells are set up. Each cell has inert electrodes.
The electrolytes are as listed below:
cell 1: aqueous sodium chloride
cell 2: concentrated hydrochloric acid
cell 3: molten lead (II) bromide
In which cells is a gas formed at both electrodes?
1 & 2
1 & 3
2 only
3 only
- 18. Multiple Choice
Carbon dioxide is an acidic oxide that reacts with aqueous calcium hydroxide.
Which type of reaction takes place?
decomposition
fermentation
neutralisation
oxidation
- 19. Multiple Choice
How many different salts could be made from a supply of dilute sulfuric acid, dilute hydrochloric acid, copper, magnesium oxide and zinc carbonate?
3
4
5
6
- 20. Multiple Choice
Which statement about the electrolysis of molten lead (II) bromide is correct?
a colourless gas is seen at the cathode
a grey metal is seen at the anode
a red / brown gas is seen at the anode
a red/ brown metal is seen at the cathode
- 21. Multiple Choice
Hydrogen burns exothermically in oxygen. The equation of the reaction is 2H2 + O2 --> 2H2O
Below shows the bond energy involved.
H-H : 436 kJ/mol
O=O: 498 kJ/mol
O-H : 464 kJ/mol
What is the energy given out during the reaction?
Tips: Bond breaking is endothermic, bond formation is exothermic. Change in energy = [Energy in - Energy out]
-3226 kJ/mol
-884 kJ/mol
-486 kJ/mol
-442 kJ/mol
- 22. Multiple Choice
Which of these pairs of aqueous ions both react with dilute sulfuric acid to give a visible result?
Ba2+ and Cl-
Ba2+ and CO32-
NH4+ and Cl-
NH4+ and CO32-
- 23. Multiple Choice
A compound is a salt if it
can neutralise an acid
contains more than one element
dissolves in water
is formed when an acid reacts with a base
- 24. Multiple Choice
Iron is extracted from its ore, hematite in a blast furnace. Which gas is produced as a waste product?
carbon dioxide
hydrogen
nitrogen
oxygen
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