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The hydride gap is used for element of group?

$\begin{array}{1 1}(a)\;1,2,3\\(b)\;3,4,5\\(c)\;7,8,9\\(d)\;6,7,8\end{array}$

1 Answer

Elements of group 7,8,9 do not form hydrides.
The metals of 7th, 8th and 9th groups in the periodic table do not form hydrides and this region of periodic table is referred to as the hydride gap.
Hence (c) is the correct answer.
answered Jan 24, 2014 by sreemathi.v
edited Nov 14 by sharmaaparna1