Sodium fluoride is characterized by which of the following properties?

Sodium fluoride is indeed odorless, making it relatively easy to handle and store without any concerns about unpleasant smells that can accompany other chemical compounds. This characteristic is important in various applications, particularly in dental products and water fluoridation, as it allows for its use in environments where odor might be a concern. Odorless substances are often preferred in these contexts because they are less likely to cause discomfort or be intrusive to users.

In considering the other characteristics, while “silly acid” may refer to a misnomer related to another compound or substance, sodium fluoride does not fit that description. The claim regarding its color being a straw yellow is also misleading, as sodium fluoride typically appears as a white or colorless crystalline substance. Lastly, a solution pH of about 1 suggests extreme acidity, which does not accurately reflect the properties of sodium fluoride when dissolved in water; instead, it typically results in a neutral to slightly alkaline pH depending on concentration. Understanding these properties helps clarify the role and safe usage of sodium fluoride in various applications.