Question

$8:8$ co-ordination of $CsCl$ is found to change into $6:6$ co-ordination on :

• A. applying pressure
• B. increasing temperature
• C. both A and B
• D. none of the above

Answer 1

The correct option is B increasing temperature

As we increase the temperature of the system, molecules get some energy and have the tendency to move further. So, crystal structure of molecule changes.
High temperature changes $8:8$ co-ordination to $6:6$ whereas, high pressure changes $6:6$ co-ordination to $8:8$.