Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202127 Aug 2021Evening ShiftChemistrys Block ElementsActual

The oxide that gives H 2 O 2 most readily on treatment with H 2 O is :

Options

  1. ANa 2 O 2
  2. BBaO 2 . 8 H 2 O
  3. CSnO 2
  4. DPbO 2

Correct answer

A. Na 2 O 2

Step-by-step solution

Among the given compounds Na 2 O 2   and   BaO 2 . 8 H 2 O are the peroxides. SnO 2   and   PbO 2 are the oxides. Na 2 O 2 + H 2 O → NaOH + H 2 O 2 Acidified barium peroxide gives hydrogen peroxide.

Practice s Block Elements on Quantrex Academy →

More from s Block Elements

First and second ionization enthalpies of lithium are 520 kJ mol ⁻¹ and 7297 kJ mol ⁻¹ respectively. Energy required to convert 3.5 mg lithium (g) into Li ²⁺ (g) [ Li(g) Li ²⁺ (g) 2026The correct set that contains all kinds (basic, acidic, amphoteric and neutral) of oxides is: 2026Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R : Assertion (A) : BeCl 2 and MgCl 2 produce characteristic flame Reason (R) : T 2023Be ( OH ) 2 reacts with Sr ( OH ) 2 to yield an ionic salt. Choose the incorrect option related to this reaction from the following 2023In the given reaction cycle X , Y and Z respectively are 2023The density of alkali metals is in the order 2023Alkali metal from the following with least melting point is 2023Mg NO 3 2 . XH 2 O and Ba NO 3 2 . YH 2 O , represent formula of the crystalline forms of nitrate salts. Sum of X and Y is....... 2023 Full s Block Elements list All JEE Main PYQs