Question 11
Emily was given a beaker containing three powdery substances P, Q and R, mixed together. The properties of the three substances are given in the table below.
Property I: Does it dissolve in water? P No; Q No; R No.
Property II: Does it float on water? P Yes; Q No; R No.
Property III: Is it a magnetic material? P No; Q Yes; R No.
Property IV: Is it a good conductor of electricity? P No; Q Yes; R Yes.
Which properties I, II, III and IV, should Emily make use of in order to separate the three substances?
Property I: Does it dissolve in water? P No; Q No; R No.
Property II: Does it float on water? P Yes; Q No; R No.
Property III: Is it a magnetic material? P No; Q Yes; R No.
Property IV: Is it a good conductor of electricity? P No; Q Yes; R Yes.
Which properties I, II, III and IV, should Emily make use of in order to separate the three substances?