Advertisements
Advertisements
Question
A compound is made up of two elements X and Y and crystallizes in bcc structure. Atoms of X are present at the corners of the cube. Atoms of Y are present at the centre of the cube. The formula of the compound is ______.
Options
X2Y
XY
XY2
X2Y3
Advertisements
Solution
A compound is made up of two elements X and Y and crystallizes in bcc structure. Atoms of X are present at the corners of the cube. Atoms of Y are present at the centre of the cube. The formula of the compound is XY.
RELATED QUESTIONS
The major binding force in diamond is_______________ .
(a) Covalent bond
(b) Ionic bond
(c) Metallic bond
(d) Co-ordinate covalent bond
What is the covalency of nitrogen in N2O5?
Solid A is a very hard electrical insulator in solid as well as in molten state and melts at extremely high temperature. What type of solid is it?
Explain ionic solids are hard and brittle.
Copper crystallises into a fcc lattice with edge length 3.61 × 10−8 cm. Show that the calculated density is in agreement with its measured value of 8.92 g cm−3.
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
Account for the following :
o-nitrophenol is more steam volatile than p-nitrophenol.
Answer the following in brief.
Distinguish between ionic solids and molecular solids
Classify the following solid:
Pb
Define unit cell.
Classify the following solid.
P4
Classify the following solid.
Diamond
____________ is an example of molecular crystal.
Fullerene is an example of ____________.
Which among the following is not true for crystalline solid?
Which among the following is an example of network solid?
Ionization enthalpy is lowest in ____________.
MgO has the structure of NaCl. The coordination number of the ions in MgO is ____________.
The compound, found in nature in gas phase but ionic in solid state is ____________.
Among solids, the highest melting point is exhibited by ____________.
The major binding force of diamond, silicon and quartz is ____________.
Graphite cannot be classified as ______.
Which of the following cannot be regarded as molecular solid?
(i) SiC (Silicon carbide)
(ii) AlN
(iii) Diamond
(iv) I2
NaCl type crystal (with coordination no. 6 : 6) can be converted into CsCl type crystal (with coordination no. 8 : 8) by applying ____________.
Why are liquids and gases categorised as fluids?
A crystal with a ≠ b ≠ c and α = β = γ = 90° is
The major binding force in diamond, silicon and quartz is ______.
Graphite is a ______.
