Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas NEET2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

Which of the following does not give oxygen on heating?

Options

  1. AZ n ( C l O 3 ) 2
  2. BK 2 C r 2 O 7
  3. C( N H 4 ) 2 C r 2 O 7
  4. DK C l O 3

Correct answer

C. ( N H 4 ) 2 C r 2 O 7

Step-by-step solution

Zn ( ClO 3 ) 2 → Δ ZnCl 2 + 3 O 2 K 2 C r 2 O 6 → Δ 2 K 2 C r O 4 + C r O 3 + 3 2 O 2 2 K C l O 3 → 2 K C l + 3 O 2 ( NH 4 ) 2 Cr 2 O 7 → Δ N 2 + Cr 2 O 3 + 2 H 2 O Hence only ammonium dichromate does not give oxygen on heating but gives N 2 .

Practice p Block Elements (Group 15, 16, 17 & 18) on Quantrex Academy →

More from p Block Elements (Group 15, 16, 17 & 18)

Identify the incorrect statement from the following : 2026Given below are two statements: Statement-I : Heating NaCl with concentrated H₂ SO₄ and MnO₂ results in oxidation of Mn. Statement-II : Heating NaI with concentrated H₂ SO₄ and MnO 2026Given below are two statements: Statement I : Like nitrogen that can form ammonia, arsenic can form arsine. Statement II : Antimony cannot form antimony pentoxide. In the light of 2025Match List - I with List-II array llll & List-I & & List-II . & XeO ₃ & I. & sp ^3 ~d , linear . & XeF ₂ & II. & sp ^3 ; pyramidal . & XeOF ₄ & III. & sp ^3 ~d ^3 ; distorted octah 2025Among Group 16 elements, which one does NOT show -2 oxidation state? 2024Identify the incorrect statement. 2024The products A and B obtained in the following reactions, respectively, are aligned & 3 ROH + PCl ₃ 3 RCl + A & ROH + PCl ₅ RCl + HCl + B aligned 2024Given below are two statements: Statement I: The boiling point of hydrides of Group 16 elements follow the order H ₂ O H ₂ Te H ₂ Se H ₂ ~S . Statement II: On the basis of molecula 2024 Full p Block Elements (Group 15, 16, 17 & 18) list All NTA Abhyas NEET PYQs