Repulsions
Trending Questions
Q. The correct order of decreasing X−O−X bond angle is:
- Cl2O>H2O>F2O
- F2O>Cl2O>H2O
- F2O>H2O>Cl2O
- Cl2O>F2O>H2O
Q.
Which of the following nonmetal is lustrous?
Iodine
Oxygen
Sulphur
Nitrogen
Q.
Is it possible for a single atom to exhibit both covalency and electrovalency?.Discuss with appropriate examples.
Q. Which of the following is cationic complexes?
- K2[Cd(CN)4]
- [Cu(NH3)4]SO4
- K3[Fe(CN)6]
- [Ni(CO)4]
Q. Number of lone pair-bond pair repulsion at 90∘ are (P) in I−3
Q. Which of the following(s) is/are anionic complexes?
K2[Cd(CN)4]
- [Cu(NH3)4]SO4
- K3[Fe(CN)6]
- [Ni(CO)4]
Q.
Dipole-dipole forces act between molecules possessing ___________.
Q. Which of the following is anionic complexes?
- [Cu(NH3)4]SO4
- K3[Fe(CN)6]
- [Ni(CO)4]
- None of the above
Q.
Why are ionic bonds the weakest?
Q. From chloral, DDT, pyrene, gammexane which has the highest chlorine content?
Q. In ICl⊖4 the shape is square planar. The number of bond pair-lone pair repulsion at 90∘ are:
- 6
- 8
- 12
- 4
Q. Which of the following is not correctly matched with respect to the intermolecular forces existing amongst the molecules?
- Benzene: London dispersion forces
- H3PO4: London dispersion force, hydrogen bonding
- HCl: London dispersion force, dipole- dipole attraction
- ICl: London dipersion force, Hydrogen bonding
Q.
Which among the following is not attracted towards a charged plate?
Water
Ammonia
Hydrochloric acid
Bromine
Q. C−O−C angle in ether molecule is :
- 110∘
- 180∘
- 109∘28′
- 90∘
Q. Draw the complete structure of bromomethane, bromoethane, 2-bro, opropane, and tert-buty-butylbrominde. Arrange them in the order of increasing steric hindrance.
Q. Hydrogen bond formation takes place between the hydrogen atom and an atom having high__________.
- electronaffinity
- electronegativity
- atomic size
- ionization potential
Q. Which of the following factor(s) affect bond length?
- Bond order.
- Size of atoms making the bond.
- Percentage s-character in the orbitals used in making the bond.
- Oxidation number of central atom.
Q. Which of the following has the longest metal-carbon (M−C) bond length?
- Ni(CO)4
- [Co(CO)4]−
- [Mn(CO)6]+
- [Fe(CO)4]2−
Q. Which of the following species does /do not exist?
- OF4
- NCl5
- NH−2
- ICI2−3
Q. In H2O, the bond angle HOH is 104∘28′ but in H2S, H2Se and H2Te the bond angles are pretty close to 90∘. This suggests that:
- oxygen uses sp2-hybrid orbitals while S, Se and Te use sp3-hybrid orbitals for bonding with the hydrogen atoms
- oxygen uses sp3-hybrid orbitals to bond with the two hydrogen atoms while S, Se and Te use almost pure p orbitals
- oxygen uses sp3-hybrid orbitals while S, Se and Te utilize d orbitals for bonding with the hydrogen atoms
- all the atoms use pure p orbitals to bond with the hydrogen atoms
Q. ___________ is present among the molecules of HCl.
- Electrostatic force
- Hydrogen bond
- Dipole-dipole attraction
- All of the above
Q. In which of the following the repulsion is least?
All of these have same repulsion