Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main2012ChemistryChemical Bonding and Molecular StructureActual

The formation of molecular complex BF ₃- NH ₃ results in a change in hybridization of boron

Options

  1. Afrom s p^2 to d s p^2
  2. Bfrom s p^2 to s p^3
  3. Cfrom s p^3 to s p^2
  4. Dfrom s p^3 to s p^3 d

Correct answer

B. from s p^2 to s p^3

Step-by-step solution

In~ BF ₃, ~B is s p^2 hybridized with one empty p_ z orbital. The empty p_ z orbital of BF ₃ can be filled by lone pair of molecules such as NH ₃ . When this occurs a tetrahedral molecule or ion is formed which is s p^3 hybridized.

Practice Chemical Bonding and Molecular Structure on Quantrex Academy →

More from Chemical Bonding and Molecular Structure

The correct order of dipole moments for the given species is 2026Consider the following species: SOCl ₂ , XeOF ₄ , ClF ₃ , ClF ₅ , XeF ₅^+ , SO ₃²⁻ , XeF ₃^+ , SF ₄ List-I contains different molecular shapes and List-II contains total number of 2026The correct order of ONO bond angle in the given species is 2026Bromine trifluoride autoionizes to form BrF ₂^ and BrF ₄^ . The shapes of the cation and anion are respectively ________, and ________. 2026Given below are two statements : Statement I : The number of compounds among SO₂ , SO₃ , SF₄ , SF₆ and H₂ S in which sulphur does not obey the Octet rule is 3 . Statement II : Amon 2026Given below are two statements : Statement I : F ₂ O Statement II : SiF ₄ , SnF ₄ and PbF ₄ are ionic in nature. In the light of the above statements, choose the correct answer fro 2026The pairs among A = [ SO ₃²⁻, CO ₃²⁻] , B = [ O ₂²⁻, F ₂] , C = [ CN ^-, CO ] , D = [ NH ₃, H ₃ O ^+] and E = [ MnO ₄²⁻, CrO ₄²⁻] that do not have similar Lewis dot structure are 2026The covalent radii of atoms A and B are r_A and r_B , respectively. The covalent bond length and total length of AB molecule are respectively 2026 Full Chemical Bonding and Molecular Structure list All JEE Main PYQs