Which of the following compounds is an example of the anomalous behavior of boron?
Boron exhibits anomalous behavior in that it forms covalent compounds with hydrogen instead of ionic compounds. , also known as diborane, is an example of such a compound. Hence option A is the correct answer.
Option (B) is incorrect because is an ionic compound. Hence option B is incorrect.
Option (C) is incorrect because is a covalent compound, but it is not an example of the anomalous behavior of boron. Hence option C is incorrect.
Option (D) is incorrect because s is an ionic compound. Hence option D is incorrect.