Alkali metals form saline hydrides by direct synthesis at high temperatures. Which of the following represents the correct order of decreasing thermal stability of these hydrides?
- A$CsH > RbH > KH > NaH > LiH$
- B$KH > NaH > KH > RbH > CsH$
- C$NaH > LiH > KH > RbH > CsH$
- D$LiH > NaH > KH > RbH > CsH$
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