Hydrogen peroxide acts as an oxidizing agent as well as reducing agent in both alkaline medium and acidic medium.
The reaction which are involved in oxidizing actions are:
(i) \( Mn^{2+}+H_{2}O_{2}\rightarrow Mn^{4+}+2OH^{-}\)
(ii) \( 2Fe^{2+}+H_{2}O_{2}\rightarrow 2Fe^{3+}+2OH^{-}\)
(iii) \( 2Fe^{2+}+2H^{+}+H_{2}O_{2}\rightarrow 2Fe^{3+}+2H_{2}O\)
(iv) \( PbS+4H_{2}O_{2}\rightarrow PbSO_{4}+4H_{2}O\)
The reaction which are involved in reduction actions are:
(i) \( I_{2}+H_{2}O_{2}+2OH^{-}\rightarrow 2I^{-}+2H_{2}O+O_{2}\)
(ii) \( 2MnO^{-}_{4}+3H_{2}O_{2}\)
\( \rightarrow 2MnO_{2}+3O_{2}+2H_{2}O+2OH^{-}\)
(iii) \( 2MnO^{-}_{4}+6H^{+}+5H_{2}O_{2}\)
\( \rightarrow 2Mn^{2+}+8H_{2}O+5O_{2}\)
(iv) \( HOCl+H_{2}O_{2}\rightarrow H_{3}O^{+}+Cl^{-}+O_{2}\)
Answered by Pragya Singh | 1 year agoWhat do you understand by the terms :
(i) Hydrogen economy
(ii) Hydrogenation
(iii) ‘syngas’
(iv) Water-gas shift reaction
(v) Fuel cell?
Do you expect different products in solution when aluminium (III) chloride and potassium chloride treated separately with
(i) alkaline water
(ii) acidified water, and
(iii) normal water. Write equations wherever necessary.
What do you expect the nature of hydrides is, if formed by elements of atomic numbers 15, 19, 23 and 44 with dihydrogen? Compare their behaviour with water.
How can saline hydrides remove traces of water from organic compounds?