Advertisements
Advertisements
प्रश्न
The ionic radii of A+ and B− are 0.98 × 10−10 m and 1.81 × 10−10 m. The coordination number of each ion in AB is ______.
पर्याय
8
2
6
4
Advertisements
उत्तर
The ionic radii of A+ and B− are 0.98 × 10−10 m and 1.81 × 10−10 m. The coordination number of each ion in AB is 6.
Explanation:
Given: Ionic radius of A+ = 0.98 × 10−10 m
Ionic radius of B− = 1.81 × 10−10 m
Formula: Radius ratio = `(rA^+)/(rB^-)`
= `(0.98 xx 10^(−10))/(1.81 xx 10^(−10))`
= 0.54 ≈ 6
∴ The coordination number of each ion in AB is 6.
APPEARS IN
संबंधित प्रश्न
What is the covalency of nitrogen in N2O5?
Classify the following solids into different types:
a. Ammonium phosphate
b. Brass
c. S8 molecule
d. Diamond
Sodium crystallizes in bcc structure. If the edge length of unit cell is 4.3 × 10-8 cm, the radius of Na atom is ______.
Graphite and diamond are ____________.
In calcium fluoride, having the flurite structure the coordination number of Ca2+ ion and F− Ion are ____________.
Give any three characteristics of ionic crystals.
If NaCl is doped with 10−2 mol percentage of strontium chloride, what is the concentration of cation vacancy?
Fullerene is an example of ____________.
Which among the following is not true for crystalline solid?
MgO has the structure of NaCl. The coordination number of the ions in MgO is ____________.
The hardest substance among the following is:
An example of a covalent crystalline solid is ____________.
Which of the following exists as covalent crystals in the solid state?
In graphite electrons are ____________.
Iodine molecules are held in the crystals lattice by ______.
Which of the following cannot be regarded as molecular solid?
(i) SiC (Silicon carbide)
(ii) AlN
(iii) Diamond
(iv) I2
Which of the following exists as covalent crystals in the solid state?
Graphite is a ______.
Mention the res of the following solid:
CO2
