How many of the following are saline hydrides?
`CH_(4),NaH, HF, CrH, PdH_(0.7), LiH, CaH_(2),TiH_(1.6)`

How many of the following can produce hydrogen gas, when react with water Na,Cl_(2),CaF_(2),Mg_(3),N_(3),CaH_(2),CaC_(2)

How many of the following may react with SiCl_(4) to produce a non-polar product ? NaH, CH_(3)MgCl, H_(2)O, LiAlH_(4), H_(2)SO_(4)(l),NH_(3), Be

Compare the acidic strength of the following comounds CH_(4), NH_(3), H_(2)O, HF

Arrange the following in the order of their decreasirg acidic strength CH_(4) , LiH , BeH_(2) , H_(2)O , HF , NH_(3)