Question

Select the correct answer. There are four samples on a laboratory table. Sample A. is a hard crystalline solid, which does not break easily. Sample B is a solid that readily dissolves in water. Sample C is a liquid that evaporates at room temperature. Sample D is a colored liquid that conducts electricity. Based on this information, which sample is most likely to be a covalent compound?

Answer 1

Answer is C for Plato users.

Answer 2

Answer: Option (C) is the correct answer.

Explanation:

A covalent compound is formed by sharing of electrons between two chemically combining atoms.

A covalent bond will always form between non-metals.

Some properties of covalent compounds are as follows.

• Covalent compounds are brittle in nature. This means they tend to break easily.

• Covalent compounds have low melting and boiling point.

• These compounds are unable to conduct heat and electricity.
• Covalent compounds generally do not dissolve in water.

As covalent compounds have low melting and boiling point so, it is possible that they evaporate at room temperature.

Thus, we can conclude that sample C is a liquid that evaporates at room temperature, most likely to be a covalent compound.