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Hydrogen finds a place in VII group of periodic table because

$\begin{array}{1 1}(a)\;\text{It is light element}\\(b)\;\text{H atom has only one electron in its valence shell}\\(c)\;\text{It forms hydride of the type NaH}\\(d)\;\text{It has 7 isotopes}\end{array}$

1 Answer

It forms hydrides with active metals like halogens.
Hence (c) is the correct answer.
answered Jan 22, 2014 by sreemathi.v