Which set of compounds in the following pair | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Lattice energy depends upon two main factors:$1$. Charge on the ions: Greater the charge,higher is the lattice energy.$2$. Size of the ions: Small

Vedclass · Accepted Answer

$MgO, LiF, Mg_3N_2$

Vedclass · Answer

(D) Lattice energy depends upon two main factors:$1$. Charge on the ions: Greater the charge,higher is the lattice energy.$2$. Size of the ions: Smaller the size of the ions,higher is the lattice energy.$(i)$ Comparing $KCl$ $(K^+, Cl^-)$ and $MgO$ $(Mg^{2+}, O^{2-})$: $MgO$ has higher ionic charges and smaller ionic radii compared to $KCl$,so $MgO$ has higher lattice energy.$(ii)$ Comparing $LiF$ $(Li^+, F^-)$ and $LiBr$ $(Li^+, Br^-)$: Both have the same cation charge,but $F^-$ is smaller than $Br^-$,so $LiF$ has higher lattice energy.$(iii)$ Comparing $Mg_3N_2$ $(Mg^{2+}, N^{3-})$ and $NaCl$ $(Na^+, Cl^-)$: $Mg_3N_2$ has significantly higher ionic charges,so it has higher lattice energy.Thus,the set with higher lattice energy is $MgO, LiF, Mg_3N_2$.

Which set of compounds in the following pair of ionic compounds has the higher lattice energy?
$(i) \, KCl$ or $MgO$ $(ii) \, LiF$ or $LiBr$ $(iii) \, Mg_3N_2$ or $NaCl$

Similar Questions

When a train stops suddenly,passengers in the running train feel an instant jerk in the forward direction because

What is the current through an ideal $P-N$ junction diode shown in the figure below? (in $mA$)

$A$ body is thrown vertically upwards and reaches its maximum height in $t$ seconds. The total time from the time of projection to reach a point at half of its maximum height while returning (in seconds) is:

The radius of an atom is of the order of

$A$ conducting rod of length $2l$ is rotating with constant angular speed $\omega$ about its perpendicular bisector. $A$ uniform magnetic field $\vec B$ exists parallel to the axis of rotation. The $e.m.f.$ induced between the two ends of the rod is

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Which set of compounds in the following pair of ionic compounds has the higher lattice energy?$(i) \, KCl$ or $MgO$ $(ii) \, LiF$ or $LiBr$ $(iii) \, Mg_3N_2$ or $NaCl$