Home
Class 12
CHEMISTRY
The following diagram shows the arrangem...

The following diagram shows the arrangement of lattice points with `a = b = c` and `alpha = beta = gamma = 90^(@)`. Choose the correct options.

A

The arrangement is `sc` with each lattice point surrounded by `6` nearest neighbours.

B

The arrangement is `sc` with each lattice point surrounded by `8` nearest neighbours.

C

The arrangement is fcc with each lattice point surrounded by `12` nearest neighbours.

D

The arrangement is bcc with each lattice point surroundeed by `8` nearest neigbours

Text Solution

Verified by Experts

The correct Answer is:
A
It is clear from that the arrangement is sc, with coordination number (CN) of each point `= 6`.
(The arrangement shown in figure consists of `4` unit cells. Taking a view of one unit cell, the atoms are not present at the face centres of each unit cell, hence it cannot be fcc, since in fcc lattice points are occpied at corners and face centres of each unit cell.
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    CENGAGE CHEMISTRY|Exercise Exercises (Assertion-Reasoning)|19 Videos

  • SOLID STATE

    CENGAGE CHEMISTRY|Exercise Exercises (Interger)|9 Videos

  • SOLID STATE

    CENGAGE CHEMISTRY|Exercise Exercises (Multiple Correct)|39 Videos

  • REDUCTION AND OXIDATION REACTION OF ORGANIC COMPOUNDS

    CENGAGE CHEMISTRY|Exercise SUBJECTIVE TYPE|3 Videos

  • SOLUTIONS

    CENGAGE CHEMISTRY|Exercise Ex 2.3 (Objective)|9 Videos

Similar Questions

Explore conceptually related problems

If a != b != c and alpha = beta = gamma = 90^(º) , the crystal system is

if a=b ne c and alpha=beta=gamma=90^(@) , the crystal system is

The crystal system for which a!= b!= c and alpha = beta = gamma = 90^(@) is said to be

The relation a=b= c and alpha = beta= gamma = 90^(@) belong to the _______crystal system

Which of the following crystal is represented by a ne b ne c and alpha ne beta ne gamma ne 90^(@) ?

CENGAGE CHEMISTRY-SOLID STATE-Exercises (Single Correct)
  1. The number of nearest neighbours and next nearest neighbours of an Na^...

    Text Solution

    |

  2. In the closest packing of atoms

    Text Solution

    |

  3. The following diagram shows the arrangement of lattice points with a =...

    Text Solution

    |

  4. The number of atoms in 100 g of an fcc crystal with density = 10.0g cm...

    Text Solution

    |

  5. Due to Frenkel defect, the density of the ionic solids

    Text Solution

    |

  6. In a tetragonal crystal

    Text Solution

    |

  7. Which of the following is not a ferroelectric compound?

    Text Solution

    |

  8. The material used in solar cells contains

    Text Solution

    |

  9. In the lattice parameter of Si = 5.43 Å and the mass of Si atom is 28....

    Text Solution

    |

  10. The lacttice parameter of GaAs (radius of Ga = 1.22 Å, As = 1.25 Å) is

    Text Solution

    |

  11. In cubic ZnS (II-VI) compounds, if the radii of Zn and S atoms are 0.7...

    Text Solution

    |

  12. Na and Mg crystallize in bcc- and fcc-type crystals, the ratio of numb...

    Text Solution

    |

  13. In a closed packed structure of mixed oxides, the lattice is composed ...

    Text Solution

    |

  14. An ionic solid A^(o+)B^(Θ) crystallizes as an bcc structure. The dist...

    Text Solution

    |

  15. An ionic solid A^(o+)B^(Θ) crystallizes as an fcc structure. If the e...

    Text Solution

    |

  16. The gamma-form of iron has fcc structure (edge length 386 pm) and beta...

    Text Solution

    |

  17. The density of an ionic compounds (Mw = 58.5) is 2.165 kg m^(-3) and ...

    Text Solution

    |

  18. The edge length of unit cell of a metal (Mw = 24) having cubic structu...

    Text Solution

    |

  19. The ratio of packing fraction in fcc, bcc, and cubic structure is, res...

    Text Solution

    |

  20. If R is the radius of the octahedral voids and r is the radius of the...

    Text Solution

    |