Question

The reaction between X and Y forms compound Z. X losses electrons and Y gains electrons. Which of the following property is not shown by Z.

• A. Has a high melting point
• B. Has a low melting point
• C. Conducts electricity in molten state
• D. Occurs as solid

Answer 1

The correct option is B

Has a low melting point

The explanation for the incorrect option:

Option (B): Has a low melting point

1. A reduction is defined as when a chemical species loses electrons and thereby decreases its oxidation number.
2. Oxidation is the loss of electrons by a molecule, atom, or ion during a process. It is the process of increasing the oxidation state of a molecule, atom, or ion.
3. A reaction in which oxidation and reduction occur is known as a redox reaction.
4. As compound X loses electrons It undergoes reduction whereas compound Y gains electrons and undergoes reduction.
5. Metal atoms give away electrons to create stable positive ions. Non-metals, on the other hand, acquire electrons and generate stable negative ions as a result.
6. Here, X is metal and Y is a non-metal
7. As a result, when a metal combines with a non-metal, electron transfer occurs, and an ionic bond is established as a result. And an ionic compound is one that contains an ionic connection.
8. Here, Z is an ionic compound.
9. Ionic crystal lattices are extremely strong due to the numerous simultaneous attractions between cations and anions that occur. In order to break all of the ionic bonds in an ionic molecule, huge quantities of energy must be added during the melting process.
10. Ionic compounds are soluble in water and are brittle and rigid.
11. Hence, It is the incorrect option.

Therefore, Z does not have a low melting point.