Question

In the reaction Sr(s) + F2 -> SrF2(s), which of the following statements about this reaction is true?

A) Fluorine was oxidized by strontium.
B) None of the other four statements is correct.
C) The oxidation number of fluorine increased.
D) The oxidation number of strontium decreased.

Answer 1

In the reaction Sr(s) + F2 -> SrF2(s), the oxidation number of fluorine increased.

Step-by-step explanation:

In the reaction Sr(s) + F2 -> SrF2(s), the statement that is true is (C) The oxidation number of fluorine increased. In this reaction, fluorine is being reduced as its oxidation number increases from 0 to -1 in F2 to 0 in SrF2. Strontium, on the other hand, is being oxidized as its oxidation number decreases from 0 in Sr to +2 in SrF2.