Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202330 Jan 2023Evening ShiftChemistrys Block ElementsActual

Which of the following reaction is correct?

Options

  1. A2 LiNO 3 ⟶ Δ 2 LiNO 2 + O 2
  2. B4 LiNO 3 ⟶ Δ 2 Li 2 O + 2 N 2 O 4 + O 2
  3. C4 LiNO 3 ⟶ Δ 2 Li 2 O + 4 NO 2 + O 2
  4. D2 LiNO 3 ⟶ Δ 2 Li + 2 NO 2 + O 2

Correct answer

C. 4 LiNO 3 ⟶ Δ 2 Li 2 O + 4 NO 2 + O 2

Step-by-step solution

Lithium nitrate when decomposed, the product formed are Li 2 O ,   NO 2 and O 2 . The remaining alkali metal nitrates decomposes to nitrite of metals and oxygen gas. It is due to the lithium monoxide is stable than other monoxides. 4 LiNO 3 ⟶ Δ 2 Li 2 O + 4 NO 2 + O 2

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