Periodic Table Questions (Practice)
5 In the Periodic Table, how many periods include the elements of atomic numbers 1-18?
A 2 B 3
C 6 D 8
6 The diagram shows a simple laboratory apparatus for the preparation and collection of a dry gas.
What is the gas?
A carbon dioxide
D hydrogen chloride
7 Solid ammonium chloride decomposes on heating according to the following equation.
Which change occurs to the damp red litmus paper in the experiment above?
A remains red
B turns blue and is then bleached
C turns blue and remains blue
D turns blue and then turns red
8 The table gives the properties of four substances.
Which substance is a solid metal at room temperature?
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