Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET20244 May 2024Evening ShiftChemistryChemical Bonding and Molecular StructureActual

Calculate radius of fourth orbit of B ⁴⁺ ion.

Options

  1. A169.3 pm
  2. B211.6 pm
  3. C380.8 pm
  4. D413.2 pm

Correct answer

A. 169.3 pm

Step-by-step solution

r _ n = 52.9( n )^2 Z pm B ⁴⁺ is a hydrogen-like species having Z =5 . Radius of the fourth orbit of B ⁴⁺ aligned & = r ₄= 52.9 (4)^2 5 pm & =169.3 pm aligned

Practice Chemical Bonding and Molecular Structure on Quantrex Academy →

More from Chemical Bonding and Molecular Structure

Which of the following sets are correctly matched? Molecule Hybrididization Geometry I. BrF ₅ sp ^3 d ^2 square pyramidal II. XeF ₆ sp ^3 d ^3 Distorted octahedral III. SF ₄ dsp ^2 2025The order of dipole moments of H ₂ O ( A ), CHCl ₃( ~B ) and NH ₃( C ) is 2025The correct order of increasing bond lengths of C - H , O - H , C - C and H - H is 2025The sum of the bond orders of O ₂²⁺, O ₂²⁻, O ₂⁺, O ₂⁻, O ₂ and sum of the unpaired electrons present in them respectively are 2025Match the following List-I (Molecule) List-II (Dipole moment in D) A) HCl I) 1.07 B) NH ₃ II) 1.85 C) H ₂ O III) 0.23 D) NF ₃ IV) 1.47 The correct answer is 2025Which of the following sets are correctly matched? Molecule Number of lone pairs of electrons on central atom Hybridization I) PCl ₃ 1 sp ^3 II) SO ₂ 1 sp ^2 III) SF ₄ 1 sp ^3 d IV 2025The number of molecules having lone pair of electrons on central atom in the following is ( BF ₃,~ SF ₄,~ SiCl ₄,~ XeF ₄,~ NCl ₃,~ XeF ₆,~ PCl ₅,~ HgCl ₂,~ SnCl ₂ ) 2025Observe the following molecules/ions. NH ₄⁺, NH ₃, BF ₃, OH ⁻, CH ₃⁺, H ⁺, CO , C ₂ H ₄ The number of Lewis bases in the above list is 2025 Full Chemical Bonding and Molecular Structure list All MHT CET PYQs