Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main202228 Jul 2022Evening ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual

Dinitrogen and dioxygen the main constituents of air do not react with each other in atmosphere to form oxides of nitrogen because

Options

  1. AN 2 is unreactive in the condition of atmosphere.
  2. BOxides of nitrogen are unstable.
  3. CReaction between them can occur in the presence of a catalyst.
  4. DThe reaction is endothermic and require very high temperature.

Correct answer

D. The reaction is endothermic and require very high temperature.

Step-by-step solution

Dinitrogen and dioxygen are the major constituents of air. These gases do not react with each other to form oxides of nitrogen because the reaction is endothermic and requires very high temperature. The dissociation energy of N 2 is very high due to the presence of triple bond and it is very stable. N 2 + O 2 ⇄ 1483 - 2000   K 2 NO

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

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

Correct statement(s) about the compounds X , Y and Z is(are) 2026Correct statement(s) about the compounds P , Q and R is(are) 2026Find the correct statements related to group 15 hydrides. A. Reducing nature increases from NH₃ to BiH₃ B. Tendency to donate lone pair of electrons decreases from NH₃ to BiH₃ C. T 2026Treatment of a gas ' X ' with a freshly prepared ferrous sulphate solution gives a compound ' Y ' as a brown ring. The compounds X and Y are. 2026Correct statements from the following are: A. Nitrogen in oxidation states from +1 to +4 disproportionates in acid medium. B. Nitrogen has the ability to form d - p multiple bonds 2026Given below are two statements: Statement I: The covalency of oxygen is generally two but it can exceed upto four. The oxidation state of oxygen in SO₂ is -2 and in OF₂ it is +2 . 2026Given below are two statements : Statement (I) : Oxidising power of halogens decreases in the order F₂ > Cl₂ > Br₂ > I₂ , which is the basis of "Layer test". Statement (II) : "Laye 2026Given below are two statements : Statement I : The increasing order of boiling point of hydrogen halides is HCl Statement II : The increasing order of melting point of hydrogen hal 2026 Full p Block Elements (Group 15, 16, 17 & 18) list All JEE Main PYQs