Question

Element A and element B have bonded and formed compound AB. Which of the following statements is true? Compound AB has chemical and physical properties that are completely different from those of A and B. Compound AB has chemical and physical properties that are a blend of the properties of A and B. Compound AB has chemical and physical properties that are similar to A but not like B. Compound AB has chemical and physical properties that are similar to B but not like A.

Answer 1

I think the correct answer from the choices listed above is the first option. The statement that is true would be that compound AB has chemical and physical properties that are completely different from those of A and B. They completely different substances with different properties.

Answer 2

Answer:

• Compound AB has chemical and physical properties that are completely different from those of A and B.

Explanation

• Physical properties are those which does not depend upon composition. As in this case, when A react with B to form AB, as new substance is formed whose composition is totally different to A and B. So AB have different physical properties than A and B.

• Chemical properties are those which depend on composition. Always each substance has chemical properties different from others. So chemical properties of A and B are also different due to different composition, similarly AB also has different composition than A and B, so it is also different from A and B in chemcial properties

Note:

• Each substance has its own characteristic physical and chemical properties. A , B and AB are three different compounds , so all have different properties.