$M g O$ has a high melting point because due to the highly charged ions, ionic force is strong and lattice energy is........

High

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Low

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Both are

No worries! We‘ve got your back. Try BYJU‘S free classes today!

None of these

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A High
lattice energy is high
In magnesium oxide, both magnesium and oxygen atoms form ions in the lattice. Due to the higher magnitude of the charge on the magnesium and oxygen atoms, the force of attraction between them is very high. This provides them with very high lattice energy and a lot of energy is required to break this lattice. Hence the melting point of $M g O$ is high. Therefore both the statements are correct and statement 2 is the correct explanation for statement 1

Suggest Corrections

Similar questions

Q. Statement 1:

M g O

has a high melting point.
Statement 2: Highly charged ions result in strong ionic forces and high lattice energies.

Q. Assertion :

M g O

has a high melting point
Reason: Highly charged ions result in high bond strength

Q. Assertion :Ionic compounds have high melting points. Reason: Ionic compounds have strong electrostatic forces of attraction between the ions. Therefore, it requires a lot of energy to overcome these forces.

Q. Lattice energy and hydration energy are two important properties of ionic solids on which their melting point, boiling point and solubility depend. Lattice energy increases as the charge on the ion increases and the size decreases. Hydration energy increases as the size of the ion decreases and charges on it increases.
The solubilities of carbonates, sulphates and phosphates of alkaline earth metals are much less than those of the corresponding alkali metals. This is because:

Statement 1: Ionic compounds have high boiling points.
Statement 2: The oppositely charged ions are held together by strong electrostatic forces of attraction and require more heat energy to break the bonds.

Join BYJU'S Learning Program

MgO has a high melting point because due to the highly charged ions, ionic force is strong and lattice energy is........

$M g O$ has a high melting point because due to the highly charged ions, ionic force is strong and lattice energy is........