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?
Give an example each of a molecular solid and an ionic solid.
Classify the following solids into different types:
a. Ammonium phosphate
b. Brass
c. S8 molecule
d. Diamond
Classify the following molecular solids into different types:
- HCl
- CO2
- Solid ice
- SO2
Graphite and diamond are ____________.
An ionic compound AxBy crystallizes in fcc type crystal structure with B ions at the centre of each face and A ion occupying corners of the cube. the correct formula of AxBy is
Classify the following solid.
P4
Which of the following is TRUE about molecular solids?
What type of interaction hold the molecules together in a polar molecular solid?
Ionization enthalpy is lowest in ____________.
Silicon carbide is an example of ____________.
Solid CH4 is ____________.
An excess of potassium ions makes KCl crystals appear violet or lilac in colour since:
(i) some of the anionic sites are occupied by an unpaired electron.
(ii) some of the anionic sites are occupied by a pair of electrons.
(iii) there are vacancies at some anionic sites.
(iv) F-centres are created which impart colour to the crystals.
Which of the following cannot be regarded as molecular solid?
(i) SiC (Silicon carbide)
(ii) AlN
(iii) Diamond
(iv) I2
Inspite of long range order in the arrangement of particles why are the crystals usually not perfect?
The covalent bond length is the shortest in which one of the following bonds?
The major binding force in diamond, silicon and quartz is ______.
Which of the following molecules is non-polar in nature?
A reddish-pink substance on heating gives off a vapour which condenses on the sides of the test tube and the substance turns blue. If on cooling water is added to the residue it turns to original colour. The substance is ______.
