Home
Class 12
CHEMISTRY
In a solid AB having the NaCl structure,...

In a solid `AB` having the `NaCl` structure, A atom occupies the corners of the cubic unit cell. If all the face-centred atoms along one of the axes are removed, then the resultant stoichiometry of the solid is

A

`AB_(2)`

B

`A_(2)B`

C

`A_(4)B_(3)`

D

`A_(3)B_(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
`Na` in `NaCl` has 8 corner and 6 face atoms. If we remove face `- ` centred atom of one axis, two face atoms are removed. Thus `A` is at 8 corner and `B` is at 4 faces.
`:. A=(8)/(8)=1` and `B=(4)/(2)=2`
Thus, formula is `AB_(2).`
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    P BAHADUR|Exercise Exercise 9|1 Videos

  • MOCK TEST PAPER

    P BAHADUR|Exercise Exercise|92 Videos

  • SURFACE CHEMISTRY

    P BAHADUR|Exercise Exercise 5|1 Videos

Similar Questions

Explore conceptually related problems

In a solid AB having NaCl structure 'A' atoms occupy the corners & face centre of the cubic unit cell. If all the face centered atoms along one of the axes are removed, then the resultant stoichiomery of the solid is

In a solid 'AB' having rock salt arrangement ( NaCl structure), 'A' atoms occupy the corners and face center of the cubic unit cell. 'B' atoms occupies all octahedral voids of the unit cell. If all the face - centered atoms along one of the axes are removed, then the resultant stoichiometry of the solid is

In a solid AB of NaCl structure, A atoms occupy the corner of the cubic unit cell. If all the corner atoms are removed then the formula of the unit cell will be