The position
of hydrogen can be determined by performing displacement reactions between
hydrogen gas and metal oxide.
In general, where
there is a reaction, the following take place:
–Hydrogen + Metal oxide ¾® metal +
water
Whether
the reaction does occur (whether hydrogen is able to displace the
metal from the oxide) depends on the relative reactivities of the metal
and hydrogen.
–Though you might not
be aware, you already know the relative reactivity of hydrogen
compared to at least a few different metals. (This is
based on metal acid reaction. Any ideas?)
You were
able to perform some displacement reactions between hydrogen
and metal oxides.