Question
Fri September 14, 2012 By: Rahul
 

WHY HYDROGEN IS A NON-METAL ,WHEN IT IS PLACED IN GROUP NO.1? IS IT AN EXCEPTION?CAN IT ACT AS BOTH AS AN OXIDISING AS WELL AS REDUCING AGENTS?IF SO,PLEASE GIVE SOME EXAMPLES.THANK YOU

Expert Reply
Fri September 14, 2012

Some compounds can act as either oxidizing agents or reducing agents. One example is hydrogen gas, which acts as an oxidizing agent when it combines with metals and as a reducing agent when it reacts with nonmetals.

2 Na(s) + H2(g) 2 NaH(s)
H2(g) + Cl2(g) 2 HCl(g)
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