1.

The coordination number X (---) of each ion in KBr is changed to Y (---) by

Answer»

X=6 to Y= 8 APPLYING high temperature
X=8 to Y=6 applying high pressure
X=6 to Y= 8 applying high pressure
none of these

Solution :On increase in pressure , the size of both the CATION and anion decreases but the latter decreases much more RAPIDLY . In consequence the RATIO `r_(+)//r_(-)` increases and so also the coordination NUMBER .


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