Answer:
This question is incomplete but the completed question is below
In which of the following are the symbol and name for the ion given correctly?
a. Fe2+: ferrous ion; Fe3+: ferric ion
b. Sn2+: stannic ion; Sn4+: stannous ion
c. Co2+: cobalt(II) ion; Co3+: cobaltous ion
d. Pb2+: lead ion; Pb4+: lead(IV) ion
The correct option is a
Explanation:
In this question, the knowledge of ion naming is been tested. Below, the ions and there correct names will be presented
Pb2+ is lead (II) ion
Pb4+ is lead (IV) ion
Co2+ is cobalt (II) ion and it is also called cobaltous ion
Co3+ is cobalt (III) ion
Sn2+ is tin (II) ion and it is also called stannous ion
Sn4+ is tin (IV) ion and it is also called stannic ion
Fe2+ is iron (II) ion and it is also called ferrous ion
Fe3+ is iron (III) ion and it is also called ferric ion
From the above, we can deduce that option a is the one that has it's symbol correctly attached to it's name
