In a chemical reaction, an iron atom became the ion fe2+. what happened to the iron atom?
a. it lost electrons and was oxidized.
b. it lost electrons and was reduced.
c. it gained electrons and was oxidized.
d. it gained electrons and was reduced.

 The correct option is (A).

Explanation:

Oxidation Is a reaction in which loss of an electrons from an atom is involved in a reaction is known as oxidation.

Reduction Is a reaction in which gain of an electrons by an atom is involved in a reaction is known as reduction.

In a chemical reaction, an iron atom became the ion which means that iron atom by loosing two electrons from its valence shell has oxidized into positively charged ion.

So, the correct option (.A)

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.