<Tr> <Td> Cobalt </Td> <Td> Pink </Td> </Tr> <Tr> <Td> Copper </Td> <Td> Blue </Td> </Tr> <Tr> <Td> Iron (II) </Td> <Td> Green </Td> </Tr> <Tr> <Td> Iron (III) </Td> <Td> Reddish brown </Td> </Tr>

In the following chemical equation which compound is the precipitate