AIIMS2018ChemistryChemical Bonding and Molecular Structure
Which of the following order is correct?
Options
- AAlCl ₃ < MgCl ₂ < NaCl : Polarising power
- BCO > CO ₂>> HCO ₂⁻> CO ₃²⁻: Bond length
- CBeCl ₂ < NF ₃ < NH ₃ : Dipole moment
- DH ₂ ~S > NH ₃> SiH ₄> BF ₃: Bond angle
Correct answer
C. BeCl ₂ < NF ₃ < NH ₃ : Dipole moment
Step-by-step solution
(a) Polarising power of cations increases with the increasing charge. aligned & (+1) (+2) (+3) & NaCl Hence, the decreasing order of bond length is CO ₃²⁻> HCO ₂⁻> CO ₂> CO . (c) Cl Be Cl , Correct order of dipole moment : BeCl ₂ SiH ₄> NH ₃> H ₂ ~S & array llll 120^ & 109^ 28^ & 107^ & 93.3^ array & aligned