MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Introduction to Alkanes

a unit cell c...

Question

a unit cell consists of a cube in which there are A atoms at the corners and B atoms at the face centres and A atoms are missing from 2 corners in each unit cell. What is the simplest formula of the compound?

Open in App

Solution

A atoms are at the corners and B atoms are at the face centres. Therefore, the given compound has an fcc lattice structure.
If two A atoms are missing,
contribution from corner atoms = 6 x 1/8 = 3/4
Contribution of B atoms at face centres = 1/2 x 6 = 3
Formula of the compound = A3/4B3
Simplest formula = A3B12 = AB4

Suggest Corrections

thumbs-up

61

Similar questions

Q. In a face centered cubic arrangement of A and B atoms in which A atoms are at the corners of the unit cell and B atoms at the face centres, one of the A atom is missing from one corner in unit cell. The simplest formula of compound is :

Q. In a fcc arrangement of A and B atoms where A atoms are at the corners of the unit cell and B atoms at the face centres, one of the A atom is missing from one corner in each unit cell. What is the simplest formula of compound?

Q. In a face centred cubic arrangement of A and B atoms in which 'A' atoms are at the corners of the unit cell and 'B' atoms are at the face centres. One of the 'A' atom is missing from one corner in unit cell. The simplest formula of compound is :

Q. In a face centred cubic arrangement of

A

B

A

atoms are at the corner of the unit cell and

B

atoms of the face centres. One of the

A

atom is missing from one corner in unit cell. The simplest formula of compound is:

Q. In a face-centered cubic of

A

B - a t o m s

A

atoms are at the corners of the unit cell and

B - a t o m s

at the face-centers, one of the

A - a t o m s

is missing from one corner in the unit cell. The simplest formula of the compound is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Alkanes - Introduction

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Introduction to Alkanes

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon