Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas JEE Main2020ChemistrySolid StatePractice

T l A l S O 4 2 . x H 2 O is bcc with edge length ‘ a ’ = 1.22 n m . If the density of the solid is 2.32 g / c c , then the value of x is (Given: N A = 6 × 10 23 , atomtextc weight (in g/mol ) TI = 204, Al = 27, S = 32, O = 16, H = 1 )

Options

  1. A2
  2. B4
  3. C47
  4. D70

Correct answer

C. 47

Step-by-step solution

For any unit cell d   =   2   M a 3   N A (for BCC,   Z   =   2 ) 2.32 = 2 × M 6 × 1 0 23 × 1.22 3 × 1 0 – 21 ∴ M = 1264 So 4 2 3 + x 1 8 = 1 2 6 4 x = 4 7

Practice Solid State on Quantrex Academy →

More from Solid State

The density (in g cm ⁻³ ) of the metal which forms a cubic close packed (ccp) lattice with an axial distance (edge length) equal to 400 pm is . Use: Atomic mass of metal =105.6 amu 2025Atoms of metals x , y and z form face-centred cubic (fcc) unit cell of edge length L x , body-centred cubic (bcc) unit cell of edge length L y , and simple cubic unit cell of edge 2023Which of the following expressions is correct in case of a CsCl unit cell (edge length ‘ a ’) ? 2023Sodium metal crystallises in a body centred cubic lattice with unit cell edge length of 4 Å . The radius of sodium atom is _ _ _ × 10 - 1 Å . (Nearest integer) 2023An atomic substance A of molar mass 12 g mol – 1 has a cubic crystal structure with edge length of 300 pm . The no. of atoms present in one unit cell of A is (Nearest integer 2023The correct relationships between unit cell edge length ‘ a ’ and radius of sphere ‘ r ’ for face-centred and body-centred cubic structures respectively are 2023Number of crystal systems from the following where body centred unit cell can be found, is _____. Cubic, tetragonal, orthorhombic, hexagonal, rhombohedral, monoclinic, triclinic 2023A compound is formed by two elements X and Y . The element Y forms cubic close packed arrangement and those of element X occupy one third of the tetrahedral voids. What is the form 2023 Full Solid State list All NTA Abhyas JEE Main PYQs