Verified Solution • 2025–26 Session moderate

QJEEM20Ch343c: JEE Main 2020 Chemistry - Class 11 JEEM20Ch343c Solution: Among the statements (a) - (d), the correct ones are : (a)…

Among the statements (a) - (d), the correct ones are :
(a) Decomposition of hydrogen peroxide gives dioxygen.
(b) Like hydrogen peroxide, compounds, such as KCIO3, Pb(NO3)2 and NaNO3 when heated liberate dioxygen.
(c) 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide.
(d) Hydrogen peroxide is used for the manufacture of sodium perborate.

Multiple Choice Options

  • A (a), (b), (c) and (d)
  • B (a) and (c) only
  • C (a), (b) and (c) only
  • D (a), (c) and (d) only

Step-by-Step Verified Solution

H2O2 ⟶Δ 2H2O +O2

KClO3, Pb(NO3)2, NaNO3 on heating will release O2 gas.

2H3BO3 + 2NaOH + 2H2O2 → Na2[B2(O2)(OH)4] + 4H2O

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