Question

 

The crystal system of a compound with unit cell dimensions,

a = 0.387, b = 0.387 and c = 0.504 nm, and α = β = 900 and γ = 1200 is

Solution

Correct option is

Hexagonal

 

Given, a = b ≠ c, α = β = 900, γ = 1200

This is true for hexagonal system.

SIMILAR QUESTIONS

Q1

Which defect causes decreases in the density of crystal?

Q2

The correct statement regarding F – centre is

Q3

Schottky defect in crystals is observed when

Q4

Frenkel defect is caused due to

Q5

An example of a non – stoichiometric compound is

Q6

A pure crystalline substance, on being heated gradually, first forms a turbid looking liquid and then the turbidity completely disappears. This behavior is the characteristic of substances forming.

Q7

 

Amorphous substances show

(i) short and long range order

(ii) short range order

(iii) long range order

(iv) have no sharp melting point

Q8

The solid NaCl is a bad conductor of electricity since

Q9

The correct statement in the following is

Q10

If Z is the number of atoms in the unit cell that represents the closest packing sequence …… ABC ABC …… the number of tetrahedral voids in the unit cell is equal to