Question

Which of the following is not true about hygroscopic substances?

• A. Because of their affinity for atmospheric moisture, hygroscopic materials might require storage in sealed containers.
• B. When added to foods or other materials for the express purpose of maintaining moisture content, such substances are known as fumectants.
• C. Hygroscopic substances include cellulose fibers (such as cotton and paper), sugar, caramel, honey.
• D. All of the above.

Answer 1

The correct option is B When added to foods or other materials for the express purpose of maintaining moisture content, such substances are known as fumectants.

Hygroscopic substances include cellulose fibers (such as cotton and paper), sugar, caramel, honey, glycerol, ethanol, methanol, diesel fuel, sulfuric acid, many fertilizer chemicals, many salts (including table salt), and a wide variety of other substances. Because of their affinity for atmospheric moisture, hygroscopic materials might require storage in sealed containers. When added to foods or other materials for the express purpose of maintaining moisture content, such substances are known as humectants.