1.

Which is correct order property indicated :

Answer»

`LiH lt NaH lt KH lt RbH lt CsH` (Thermal stability)
`'BeCO_(3)lt MgCO_(3)lt CaCO_(3)lt SrCO_(3)` (Solubility)
`Na_(2)SO_(4)lt K_(2)SO_(4)lt Rb_(2)SO_(4)lt Cs_(2)SO_(4)` (Solubility)
(A) & (C ) both

Solution :
No any plane of symmetry, so mirror image non superimposable.


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