WorksheetsIGCSE Coordinated Chemistry Workout 11
Total questions: 10
Worksheet time: 10mins
The three states of matter are represented by diagrams X, Y and Z. Which change occurs during condensation?
X to Y
X to Z
Y to X
Z to X
The diagram shows a circuit. Solid X makes the lamp light. What is solid X?
rubber
silicon (IV) oxide
sulfur
zinc
Which two elements are present in the compounds found in petroleum?
carbon and nitrogen
carbon and oxygen
hydrogen and carbon
hydrogen and oxygen
Which molecules join into long chains to make proteins?
amino acids
ethene
glucose
starch
Which material is made from silicon (IV) oxide combined with metal oxides?
brass
glass
polythene
steel
Carbon is used in the extraction of some metals from their ores because
1 carbon forms strong alloys with metals,
2 carbon reacts with oxygen in the ore.
Which of these statements are correct?
1 only
2 only
both 1 and 2
neither 1 nor 2
Sodium chloride solution is electrolysed and a gas is collected at each electrode. One gas decolourises moist litmus paper, the other gas burns with a pop.
Which statement is correct?
Chlorine gas is collected at the anode.
Hydrogen gas is collected at the anode.
Oxygen gas is collected at the cathode.
The cathode is the positive electrode.
Compound X is heated gently with aluminium powder and sodium hydroxide solution. The damp red litmus paper turns blue.
What does X contain?
carbonate
chloride
nitrate
sulfate
Elements X and Y react together to form a compound.
The diagram shows the outer shells of X and Y after reaction.
Which statement is correct?
X is in group VII and has formed the X+ ion.
X is in group VII and has formed the X– ion.
X is in group VIII and has formed the X+ ion.
X is in group VIII and has formed the X– ion.
Waste material buried underground can decay to form gas X which can be used as a fuel. X burns to form an oxide Y and water.
X + oxygen → Y + water
What is Y?
carbon dioxide
nitrogen dioxide
sulfur dioxide
sulfur trioxide
