Column A
1.
Unknown 1:
Unknown 1
2.
Unknown 2:
Unknown 2
3.
Unknown 3:
Unknown 3
4.
Unkown 4:
Unkown 4
Column B
a. Glycerin
b. Ethanol
c. Syrup
d. Methanol
To match the items in Column A with the corresponding items in Column B, you need to compare the descriptions in Column A with the substances listed in Column B.
1. Unknown 1: Glycerin (match a)
2. Unknown 2: Ethanol (match b)
3. Unknown 3: Syrup (match c)
4. Unknown 4: Methanol (match d)
Therefore, the matches are as follows:
1. Unknown 1 matches with Glycerin
2. Unknown 2 matches with Ethanol
3. Unknown 3 matches with Syrup
4. Unknown 4 matches with Methanol