Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Chemistry Hydrogen Hydrogen and its Hydrides
Metal hydrides are ionic, covalent or molecular in nature. Among LiH, NaH, KH, RbH, CsH, the correct order of increasing ionic character is
1
LiH > NaH > CsH > KH>RbH
2
LiH < NaH < KH < RbH < CsH
3
RbH > CsH > NaH > KH > LiH
4
More than one of the above
5
None of the above