Home
Class 12
CHEMISTRY
Number of unit cells in 4g of X(atomic m...

Number of unit cells in 4g of X(atomic mass=40). Which crystallises in bcc pattern in `(N_(0)="Avogadro number")`

A

`0.1N_A`

B

`2xx0.1N_A`

C

`(0.1N_A)/(2)`

D

`2xxN_A`

Text Solution

Verified by Experts

The correct Answer is:
C
`40g=N_A` atoms
`4g=0.1N_A` atoms
2 atoms form 1 unit cell in bcc crystal
`therefore 0.1xxN_A "atoms"=(0.1xxN_A)/(2)` unit cells
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise EXERCISE 2|38 Videos

  • SOLID STATE

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|12 Videos

  • SOLID STATE

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|12 Videos

  • S-BLOCK ELEMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 2|20 Videos

  • SOLUTIONS AND COLLIGATIVE PROPERTIES

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|25 Videos

Similar Questions

Explore conceptually related problems

Number of unit cell in 8 g of X (atomic mass =40) which crystallizes in bcc pattern is (N_(A) = Agogardro number)

The number of atoms per unit cell in bcc lattice is

Density of a unit cell is same as the density of the substance. If the density of the substance is known, number of atoms or dimensions of the unit cell can be calculated . The density of the unit cell is related to its mass(M), no. of atoms per unit cell (Z), edge length (a in cm) and Avogadro number N_A as : rho = (Z xx M)/(a^3 xx N_A) The number of atoms present in 100 g of a bcc crystal (density = 12.5 g cm^(-3)) having cell edge 200 pm is

Density of a unit cell is same as the density of the substance. If the density of the substance is known, number of atoms or dimensions of the unit cell can be calculated . The density of the unit cell is related to its mass(M), no. of atoms per unit cell (Z), edge length (a in cm) and Avogadro number N_A as : rho = (Z xx M)/(a^3 xx N_A) A metal X (at. mass = 60) has a body centred cubic crystal structure. The density of the metal is 4.2 g cm^(-3) . The volume of unit cell is

Density of a unit cell is same as the density of the substance. If the density of the substance is known, number of atoms or dimensions of the unit cell can be calculated . The density of the unit cell is related to its mass(M), no. of atoms per unit cell (Z), edge length (a in cm) and Avogadro number N_A as : rho = (Z xx M)/(a^3 xx N_A) An element crystallizes in a structure having a fcc unit-cell an edge 100 pm. If 24 g of the element contains 24 xx 10^(23) atoms, the density is

An element of atomic mass 40 occurs in fcc structure with a cell edge of 540 pm. Calculate the Avogadro's number if density is 1.7gm//cm^(3) .

Total number of neutrons present in 4g of heavy water (D_(2)O) is : (Where N_(A) represetns Avogadro's number)

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SOLID STATE-EXERCISE 1
  1. The number of hexagonal faces that are present in a truncated octahedr...

    Text Solution

    |

  2. The number of atoms contained in a fcc unit cell of a monoatomic subst...

    Text Solution

    |

  3. Number of unit cells in 4g of X(atomic mass=40). Which crystallises in...

    Text Solution

    |

  4. Match the following Choose the correct option

    Text Solution

    |

  5. What is the coordination number of each atom in a hexagonal close-pack...

    Text Solution

    |

  6. At the limiting value of radius ration (r^+)/(r^-)

    Text Solution

    |

  7. The NaCl structure can be converted into CsCl structure

    Text Solution

    |

  8. If the crystallises in zinc blende structure with I^- ions at lattice ...

    Text Solution

    |

  9. In which pair most efficient packing is present?

    Text Solution

    |

  10. In which of the following packing 74% space is occupied by the atoms w...

    Text Solution

    |

  11. When the centres of the four immediate neighbouring spheres are joine...

    Text Solution

    |

  12. If the number of close packed sphere be N, then the number of octahedr...

    Text Solution

    |

  13. While placing the second layer over that first layer , if the sphere o...

    Text Solution

    |

  14. In an antiflourite structure, cations occupy

    Text Solution

    |

  15. The numbers of tetrahedral and octahedral holes in a ccp array of 100 ...

    Text Solution

    |

  16. The total number of octahedral void (s) per atom present in a cubic cl...

    Text Solution

    |

  17. Total no. of voids in 0.5 mole of a compound forming hexagonal closed ...

    Text Solution

    |

  18. Point out the correct statement for the set of characteristics of ZnS ...

    Text Solution

    |

  19. In which of the following crystals, alternate tetrahedral voids are oc...

    Text Solution

    |

  20. The ionic radii of Rb^(+) and I^(-) are 1.46 and 2.16Å. The most proba...

    Text Solution

    |