1.

X-ray crystallography reveals many aspects of the structure of metal halldes. The radius ratio (r_(+)//r_(-)) is a useful parameter to rationalize their structure and stability. A table or radius ratio (r_(+)//r_(-)) for some alkali halide is given below :Which among the halides LiBr, NaBr and RbBr is likely to undergo phase transition from NaCl type of CsCl type structure with change of temperature and/or pressure ?

Answer»

LIBR
NaBr
RbBr
NONE of the above

ANSWER :C


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