Solid State Tes...

CsCI crystallises in a cube that has CP at each corner and Cs+ at the centre of the unit cell. If  r_Cs⁺  = 169 pm and r_cl^- =181 pm, then edge length of the cube is 

A mineral having the formula AB₂ crystallises in the cubic closest - packed lattice with the A-atoms occupying the lattice points. Fraction of the tetrahedral sites occupied by 6-atoms is

Silver metal crystallises in a cubic closest packed arrangement with edge length 407 pm. Thus, radius of the silver atom is

What is the formula of a magnetic oxide of cobalt used in recording tapes that crystallises with cobalt atoms occupying one-eighth of the tetrahedral holes and one-half of the octahedral holes in a closest packed array of oxide ions?

The total number of tetrahedral voids in the face-centred unit cell is

Packing efficiency (%) of different types of unit cells is given. Select the correct packing efficiency.

Coordination numbers in a square close packed structure and hexagonal close packed structure respectively, are

The length of the unit cell edge of a bcc lattice metal is 352 pm. Thus, volume of atoms in one mole of the metal is

A compound M_p X_q has cubic close packing arrangement of X. Its unit cell structure is shown below. The empirical formula of the compound is

Radii of A⁺ and that of X^- and Y^- have been given as 

A⁺= 1.00 pm

X^- = 1.00 pm

Y^- = 2.00 pm

Thus, ratio of volumes of A X and A Y unit cells is 

In the structure of NaCI given below, ratio r_Na⁺/r_cl^-  is 

Matching List Type
Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.