Home
Class 11
CHEMISTRY
MgO crystallizes in a cubic type crystal...

MgO crystallizes in a cubic type crystal system. The ionic radii for `Mg^(2+) and O^(2-)` are 0.066 abd 0.140nm respectively One can conclude that the `Mg^(2+)` ions occypy:

A

a cubic hole in a simple structure

B

every tetrahedral hole in a close packed structure

C

an octahedral hole in a cubic packed structure

D

every other tetrahedral hole in a close paked structure

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    NARENDRA AWASTHI|Exercise Level 1 (Q.33 To Q.62)|1 Videos
  • SOLID STATE

    NARENDRA AWASTHI|Exercise Level 3 - One Or More Answers Are Correct|1 Videos
  • IONIC EEQUILIBRIUM

    NARENDRA AWASTHI|Exercise Assertin-Reason Type Questions|1 Videos
  • STOICHIOMETRY

    NARENDRA AWASTHI|Exercise Level 3 - Subjective Problems|20 Videos

Similar Questions

Explore conceptually related problems

Salt AB has a zinc blende structure. The radius of A^(2+) and B^(2-) ion are 0.7Å and 1.8 Å respectively. The edge length of AB unit cell is:

The electronegativities of F and H are 4.0 and 2.1 respectively. The percent ionic character in H and F bond is

In an ionic compound A^(+)X^(-) , the radii of A^(+) and X^(-) ions ar 1.0pm and 2.0pm, respectively. The volume of the unit cell of the crystal AX will be:

19 gm of ice is converted into water at 0^(@)C and 1 atm. The entropies of H_(2)O(s) and H_(2)O(l) are 38.2 and 60 J//"mol " K respectively. The enthalpy change for this conversion is :

In the equilibrium 2SO_(2)(g)+O_(2)(g)hArr2SO_(3)(g) , the partial pressure of SO_(2),O_(2) and SO_(3) are 0.662,0.10 and 0.331 atm respectively . What should be the partial pressure of Oxygen so that the equilibrium concentrations of SO_(3) are equal ?

A spinel is an important class of oxide consisting two types of metal ions withs the oxide ions arranged in ccp layers . The normal spinel has one -eight of the tetrahendral holes occupied by one type of metal ions and one- half of the octaherdral holes occupied by another type of metal ion. Such a spine is formed by Mg^(2+), Al^(3+) and O^(2-) . The netutrality of the crystal is benig maintained. Type of hole occupied by Al^(3+) ions is:

A spinel is an important class of oxide consisting two types of metal ions with the oxide ions arranged in ccp layers . The normal spinel has one -eight of the tetrahedral holes occupied by one type of metal ions and one- half of the octahedral holes occupied by another type of metal ion. Such a spinel is formed by Mg^(2+), Al^(3+) and O^(2-) . The neutrality of the crystal is being maintained. The formula of the spinel is :

Predict the structure of MgO. The radius of Mg^(2+) ion is 65 pm and radius of O^2 ion is 140 pm Also find the co-ordination number

An ionic compound AB_2 possesses CaF_2 type crystal structure. Write the coodinations numbers of A^(2+) and B^(-) ions in crystals of AB_2 .