Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NTA Abhyas JEE Main2020Chemistryp Block Elements (Group 15, 16, 17 & 18)Practice

At 25 o C , nitrogen exists as N 2 and phosphorous exists as P 4 because

Options

  1. AN 2 has valence electrons only in bonding and nonbonding orbitals, while P has valence electrons in both bondi
  2. Bhigher electronegativity of N favours formation of multiple bonds
  3. Cbigger size of P does not favour multiple bonds
  4. DP has preference to adapt structures with small bond angles

Correct answer

C. bigger size of P does not favour multiple bonds

Step-by-step solution

Due to larger atomic size P is unable to form pi bond and so it is tetra-atomic P 4 in which each P atom is linked with 3 other P atoms by 3 sigma bonds. But, due to smaller atomic size N forms 1 sigma and 2 pi bonds i.e. triple bonds with other N atom and exists as diatomic molecule N 2 .

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 NTA Abhyas JEE Main PYQs