Advertisements
Advertisements
प्रश्न
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 ______.
विकल्प
X2Y
XY
XY2
X2Y3
Advertisements
उत्तर
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.
संबंधित प्रश्न
Explain the basis of similarities between metallic and ionic crystals.
Classify the following solids into different types:
a. Ammonium phosphate
b. Brass
c. S8 molecule
d. Diamond
Define Anisotropy.
Account for the following :
o-nitrophenol is more steam volatile than p-nitrophenol.
Classify the following solid:
Pb
Graphite and diamond are ____________.
Solid CO2 is an example of ____________.
Define unit cell.
Which of the following is TRUE about molecular solids?
____________ is an example of molecular crystal.
Lithium crystallizes into body centered cubic structure. What is the radius of lithium if edge length of it's unit cell is 351 pm?
Solid X is a very hard electrical insulator in solid as well as in molten state. It melts at extremely high temperature. Solid X is a ____________.
Which among the following is an example of non-polar molecule?
Silicon carbide is an example of ____________.
London forces are present in ____________.
MgO has the structure of NaCl. The coordination number of the ions in MgO is ____________.
The hardest substance among the following is:
Solid CH4 is ____________.
Among solids, the highest melting point is exhibited by ____________.
In graphite electrons are ____________.
Which one of the following forms a molecular solid when solidified?
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
Why are liquids and gases categorised as fluids?
Inspite of long range order in the arrangement of particles why are the crystals usually not perfect?
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 ______.
