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: dissolves in water? P No, Q No, R No.
Property II: floats on water? P Yes, Q No, R No.
Property III: magnetic material? P No, Q Yes, R No.
Property IV: 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: dissolves in water? P No, Q No, R No.
Property II: floats on water? P Yes, Q No, R No.
Property III: magnetic material? P No, Q Yes, R No.
Property IV: 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?