Which structure is linear?
SO2
CO2
CO32-
SO42-
When the hybridisation state of carbon atom changes from sp3 and finally to sp, the angle between the hybridised orbitals.
Decreases gradually
Decrease considerably
Is not affected
Increases progressively
Mark the incorrect statement in the following.
The bond order in the species O2, O2+ and O2- decreases as O2+> O2>O2-
The bond energy in a diatomic molecule always increases when an electron is lost.
Electrons in antibonding molecule contribute to repulsion between two atoms.
With increase in bond order, bond length decreases and bond strength increases.
Which one of the following statement is not correct?
Double bond is shorter than a single bond
Sigma bond is weaker than a π(pi) bond.
Double bond is stronger than a single bond
Covalent bond is stronger than hydrogen bond
The boiling point of p- nitrophenol is higher than that of O- nitrophenol because___________.
NO2 group at p- position behave in a different way from that at O- position.
Intramolecular hydrogen bonding exists in p- nitrophenol
There is intermolecular hydrogen bonding in p- nitrophenol.
P- nitrophenol has a higher molecular weight than O- nitrophenol.
Which of the following molecule does not have a linear arrangement of atoms?
H2S
C2 H2
HCN
The charge on a cation M is +2 and on an anion A is -3. The compound formed by them has the formula :
H2O
NH3
HF
Which one of the following is the correct order of interactions?
Covalent
Van der waal's < hydrogen bonding < dipole - dipole< covalent
Van der Waal's < dipole- dipole< hydrogen bonding < covalent
Dipole-dipole
Which of the following does not have a tetrahedral structure?
BH4-
BH3
NH4+
Which one shows maximum hydrogen bonding?
H2Se
