Some properties of four elements W, X, Y and Z are listed.
1 W melts at 1410°C and forms an acidic oxide.
2 X has a high density and is easily drawn into wires.
3 Y acts as a catalyst and its oxide reacts with acids.
4 Z is a red-brown solid used to make alloys.
Which of the elements are metals?
1 )
1 and 3
2, 3 and 4
3 )
2 and 3 only
4 )
2 and 4 only
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