Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
COMEDK2022ChemistryChemical Bonding and Molecular Structure

Which of the following molecules does not exhibit dipole moment? (i) CCl ₄ (ii) CO ₂ (iii) NH ₃ (iv) CHCl ₃ (v) H ₂ O (vi) CH ₃- O - CH ₃

Options

  1. A(ii), (v), (iv)
  2. B(i), (iii), (vi)
  3. C(i), (ii)
  4. D(iii), (iv), (vi)

Correct answer

C. (i), (ii)

Step-by-step solution

A molecule exhibits a net dipole moment if the vector sum of the individual bond dipoles is non-zero. This depends on the molecular geometry and the electronegativity difference between atoms. CCl ₄ has a tetrahedral geometry. The four C-Cl bond dipoles are equal in magnitude and directed towards the corners of a regular tetrahedron, resulting in a net dipole moment of zero. CO ₂ has a linear geometry ( O=C=O ). The two C=O bond dipoles are equal and opposite, cancelling each other out, resulting in a net dipole mo

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 COMEDK PYQs