WorksheetsIGCSE Coordinated Chemistry Workout 14
Total questions: 10
Worksheet time: 10mins
The colours in an ink can be separated by chromatography.
Which diagram shows the correct way to set up the apparatus?
A
B
C
D
The diagram shows a helium atom. Which particles in the helium atom have approximately the same mass?
electron and proton only
electron and neutron only
proton and neutron only
electron, proton and neutron
How many atoms of metals and of non-metals are shown in the formula Na2SO4?
A
B
C
D
The apparatus shown is used to investigate the speed of reaction between hydrochloric acid and calcium carbonate. The time to collect 50 cm3 of gas is measured. Using concentrated acid and lumps of calcium carbonate, the time is 150 s.
In a second experiment, the time is 90 s. Which change was made in the second experiment?
lower temperature
less concentrated acid
larger lumps of calcium carbonate
higher temperature
Hydrogen and oxygen react explosively to form water. Which terms describe this reaction?
A
B
C
D
The diagram shows litmus paper testing the gas that is given off from the contents of the test tube.
The damp litmus paper
turns blue.
turns colourless.
turns red.
turns red and is then bleached white.
Universal Indicator solution is added to test-tubes W, X and Y. What are the colours of the Universal Indicator?
green in W; red in X; purple in Y.
purple in W; green in X; red in Y.
red in W; green in X; purple in Y.
red in W; purple in X; green in Y.
The table shows physical properties of some substances. Which substance is a metal?
A
B
C
D
Which statement about lithium, sodium and potassium is not correct?
They are in the same group of the Periodic Table.
They are in the same period of the Periodic Table.
They float on water.
They react with water to give the flammable gas hydrogen.
Copper is obtained from copper oxide by heating with non-metal X. Which shows the identity of non-metal X and the type of reaction non-metal X undergoes?
X is carbon undergoing oxidation
X is carbon undergoing reduction
X is oxygen undergoing oxidation
X is oxygen undergoing reduction
