A. Ionic solid
B. Molecular solid
C. Covalent solid
D. Graphic solid
Which of this solids is soluble in water, conductive in solution, brittle and could have a melting point of 2800 C.
I think the answer is A.
I agree with A.
To determine which type of solid is soluble in water, conductive in solution, brittle, and could have a melting point of 2800°C, let's analyze the given options:
A. Ionic solid: Ionic compounds are usually soluble in water and conductive in solution due to the dissociation of ions. However, they typically have high melting points and are not brittle.
B. Molecular solid: Molecular compounds are generally not soluble in water and not conductive in solution. Additionally, they tend to have low melting points.
C. Covalent solid: Covalent compounds are not soluble in water and not conductive in solution. They may have varying melting points, but they are typically not as high as 2800°C.
D. Graphic solid: There is no such classification as a "graphic solid," so it can be eliminated as an option.
Based on the characteristics provided, A. Ionic solid appears to be the most appropriate choice. Ionic solids, such as salts, can be soluble in water, conductive in solution, brittle due to the arrangement of ions, and can have high melting points, including temperatures around 2800°C.