# NEET Chemistry Hydrogen Questions Solved

In which of the following reactions is ${\mathrm{H}}_{2}{\mathrm{O}}_{2}$ acting as an acid.

(A) $2{\mathrm{KMnO}}_{4}+3{\mathrm{H}}_{2}{\mathrm{SO}}_{4}+5{\mathrm{H}}_{2}{\mathrm{O}}_{2}\to {\mathrm{K}}_{2}{\mathrm{SO}}_{4}+{\mathrm{MnO}}_{4}+2{\mathrm{MnSO}}_{4}+8{\mathrm{H}}_{2}\mathrm{O}+5{\mathrm{O}}_{2}$

(B) $2{\mathrm{K}}_{3}\mathrm{Fe}{\left(\mathrm{CN}\right)}_{6}+2\mathrm{KOH}+{\mathrm{H}}_{2}{\mathrm{O}}_{2}\to 2{\mathrm{K}}_{4}\mathrm{Fe}{\left(\mathrm{CN}\right)}_{6}+2{\mathrm{H}}_{2}\mathrm{O}+{\mathrm{O}}_{2}$

(C) ${\mathrm{O}}_{3}+{\mathrm{H}}_{2}{\mathrm{O}}_{2}\to {\mathrm{H}}_{2}\mathrm{O}+2{\mathrm{O}}_{2}$

(D)

(D). $\mathrm{Ba}{\left(\mathrm{OH}\right)}_{2}+{\mathrm{H}}_{2}{\mathrm{O}}_{2}\to {\mathrm{BaO}}_{2}+2{\mathrm{H}}_{2}\mathrm{O}$ is similar to acid base (neutralisation reaction). Aqueous

solution of ${\mathrm{H}}_{2}{\mathrm{O}}_{2}$ is weakly acidic.

Difficulty Level:

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