First slide

Crystal lattices and unit cells

Question

Select the correct statement (s)

Moderate

A

CsCl change to NaCl structure on heating
B

NaCl changes to CsCl structure on applying pressure
C

Co-ordinate number decreases on applying pressure
D

Co-ordinate number increases on heating

Solution

On increasing temperature C.No. $↓$
C.No. change 8 : 8 to 6 : 6
On increasing pressure C.No.
NaCl structure can be converted into CsCl structure by application of pressure while the reverse can be done by heating to 760 K.NaCl structure can be converted into CsCl structure by application of pressure while the reverse can be done by heating to 760 K.

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