Home
Class 12
CHEMISTRY
Assertion: The total number of atoms pre...

Assertion: The total number of atoms present in a simple cubic unit cell is one.
Reason: Simple cubic unit cell has atoms at its corners, each of which is shared between eight adjacent unit cells.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true, but reason is not the correct explanation of assertion.

C

If assertion is true, but reason is false.

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A

In a simple cubic unit cell, atoms are present at each corners and each of it is shared between eight adjacent unit cells. Therefore, the total number of atoms present in a simple unit cell is 8 x 1/8= 1. Thus, both assertion and reason are true and reason is the correct explanation of assertion.
Promotional Banner

Topper's Solved these Questions

  • THE SOLID STATE

    ICSE|Exercise MULTIPLE CHOICE QUESTIONS (Structure based questions)|6 Videos
  • SURFACE CHEMISTRY

    ICSE|Exercise ISC EXAMINATION QUESTIONS |4 Videos

Similar Questions

Explore conceptually related problems

Assertion :- (A) The total number of atoms present in a simple cubic unit cell is one . Reason :-(R ) Simple cubic cell has atoms at its corners , each of which is shared between eight adjacent unit cells.

Assertion :- (a) the total number of atoms present in a simple cubic unit cell is one . Reasn :-(R ) simple cubic cell has atoms at its corners , each of which is shered between eight adjecent adjeacent unit cells.

The efficiency of packing in simple cubic unit cell is

The number of carbon atoms per unit cell of diamond unit cell is

The number of carbon atoms per unit cell of diamond unit cell is

The coordination number of each atom in body centered cubic unit cell is

Calculate the number of atoms in a face centred cubic unit cell.

The volume of atom present in a face-centred cubic unit cell of a metal ( r is atomic radius ) is

The volume of atom present in a face-centred cubic unit cell of a metal ( r is atomic radius ) is

The volume of atom present in a face-centred cubic unit cell of a metal ( r is atomic radius ) is