Question

Use the pop-up menus to label the following statements as either True of False.

1. Hypochlorous acid is an oxidizing agent.
2. Concentrated acetic acid is corrosive.
3. Methylene chloride is flammable.
4. Methylene chloride is a probable human carcinogen.
5. Pipets that contain only water can be disposed of in the trash.

Answer 1

Hypochlorous acid is an oxidizing agent and concentrated acetic acid is corrosive, both statements are true. However, methylene chloride is not flammable but is a probable human carcinogen, and pipets with only water can be disposed of in the trash, making these statements true and false respectively.

Step-by-step explanation:

Let's assess the true or false statements provided in the question:

• Hypochlorous acid is an oxidizing agent. True. Chlorine is highly electronegative, which generally means it is a good oxidizing agent. This property is exemplified in its reactivity, where it can oxidize most elements except fluorine, oxygen, nitrogen, and the noble gases.
• Concentrated acetic acid is corrosive. True. Acetic acid, when concentrated, is indeed corrosive much like hydrochloric acid and other strong acids, which can cause severe burns on contact with skin and are hazardous to tissues.
• Methylene chloride is flammable. False. Methylene chloride, also known as dichloromethane, is not flammable. It is a chlorinated hydrocarbon that does not easily catch fire.
• Methylene chloride is a probable human carcinogen. True. Various health agencies have identified methylene chloride as a probable human carcinogen based on evidence from animal studies and occupational exposures.
• Pipets that contain only water can be disposed of in the trash. True. Pipets containing only water do not present a chemical hazard and can typically be discarded in regular trash, following any applicable laboratory guidelines.

Answer 2

1 True

2. True

3. True

4. True

5. False

Step-by-step explanation:

1. Hypochlorous acid (HOCl) is a weak acid that forms when chlorine dissolves in water, and is partially dissociated, forming hypochlorite. HOCl is considered a strong oxidizing agent responsible for the killing action of germs in chlorine solutions.

2. Acetic acid is also known as ethanoic acid. It has a distinctive sour taste and pungent smell, and is generally considered a weak acid. in a concentrated form, acetic acid can be corrosive.

3/4 . Methylene chloride is an organochloride compound with the formula CH2Cl2. It is a colorless, volatile liquid with a moderately sweet aroma is widely used as a solvent. It is normally stable, non-flammable and non-explosive when mixed with air at temperatures below 100 °C, but its vapor is flammable only when present in relatively high concentrations of about 14% to 22% in air. Research shows that it is very much possibly carcinogenic, and it has been linked to cancer of the lungs, liver, pancreas, breast cancer and salivary gland cancer in laboratory animals.

5. Laboratory and medical waste are not to be disposed in the trash with regular wastes, as they are potentially toxic. Special disposal methods and agencies exists to take away such wastes.