Question

16. H2O2 is an
important chemical.
(a) Give a method to prepare H2O2.
(b) Represent the structure of H2O2.​

Answer 1

Answer:

Explanation:

a)Hydrogen peroxide is prepared by the electrolysis of 30% ice-cold H2SO4. When acidified sulfate solution is electrolyzed at high current density, peroxodisulphate is obtained. Peroxodisulphate is then hydrolyzed to get hydrogen peroxide.

b)The structure of hydrogen peroxide is non-planar. H2O2 has an open book structure with O – O spins. The dihedral angle is 111°. The O-O bond length is 145.8 pm and the O-H bond length is 98.8 pm(which is equal to 9.88 × 10-13 m).