6
Question
Statement: Increase in pressure in ionic solids may decrease its co-ordination number.
State whether the given statement is true or false.
Statement: Increase in pressure in ionic solids may decrease its co-ordination number.
State whether the given statement is true or false.
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Solution
The correct option is A True
Pressure and temperature also influence the structure of ionic solids. The structures of chlorides, bromides and iodides of sodium, potassium and rubidium having 6:6 Co-ordination at normal temperature and pressure changes to 8:8 co-ordination like CsCl structure at high pressure, Thus, high pressure increases co-ordination number. Furthermore, CsCl structure changes to NaCl structure at 760 K. Thus, high temperature decreases co-ordination number.
Hence, the given statement is true
Pressure and temperature also influence the structure of ionic solids. The structures of chlorides, bromides and iodides of sodium, potassium and rubidium having 6:6 Co-ordination at normal temperature and pressure changes to 8:8 co-ordination like CsCl structure at high pressure, Thus, high pressure increases co-ordination number. Furthermore, CsCl structure changes to NaCl structure at 760 K. Thus, high temperature decreases co-ordination number.
Hence, the given statement is true
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