Answer
a. Inorganic compound.
b. Organic compound.
c. Organic compound.
d. Inorganic compound.
Work Step by Step
a. $Li$ and $F$ form the ionic compound: $LiF$, $Li^+$ + $F^-$; since it is an ionic compound, it probably is inorganic.
b. The boiling point of organic compounds is usually lower than room temperature; thus, their most common form is as a gas.
c. and d. See Table 12.1, page 445
