An Effective Means Used Early in the 19th Century to Clear

question 21

Multiple Choice

An effective means used early in the 19th century to clear water of the majority of bacteria was the use of

• A) chlorine.
• B) iodine.
• C) alcohol.
• D) sand filters.

---

Definitions:

Syn Fashion

A descriptive term for a stereochemical arrangement in which substituents on adjacent carbons are oriented on the same side of a molecule or double bond.

Dihydroxylation

A chemical process that introduces two hydroxyl (-OH) groups across a double bond in alkenes, producing diols.

Hydroboration

A chemical reaction that adds boron and hydrogen across the double bond of alkenes to form organoboranes, a helpful intermediate in organic synthesis.

Alkene

Hydrocarbons that contain at least one carbon-carbon double bond, involved in various organic reactions.