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Hydrogen

Question
CBSEENCH11006874

Give an examples showing electronegative character of hydrogen. 

Solution
(i) Hydrogen has a tendency to accept one electron to form the hydride ion.
H + e→ H-

(ii) When fused alkali metal hydride (NaH) is electrolyzed, hydrogen is liberated at the anode showing that is present as H.
    space space space space space space space space space space space space space space space NaH space space rightwards harpoon over leftwards harpoon space space Na to the power of plus space plus space straight H to the power of minus
At space anode space space space space straight H to the power of minus space space rightwards arrow space space straight H space plus space straight e to the power of minus space left square bracket Primary space change right square bracket
space space space space space space space space space space space straight H space plus space straight H space space rightwards arrow space space straight H subscript 2 space left square bracket Secondary space change right square bracket