Paramagnetism of oxygen is explained on the basis of its electronic configuration of
(*2px)1(2py)1
(*2py)1(*2pz)1
(σ*2s)1(2py)1
(σ*2s)1(2py)1
Which of the following statements is correct ?
All carbon to carbon bonds contain a σ-bond and one or more -bonds
All carbon to hydrogen bonds are -bonds
All oxygen to hydrogen bonds are hydrogen bonds
All carbon to hydrogen bonds are -bonds
An example of a polar covalent compound is :
KCl
NaCl
CCl4
HCl
D.
HCl
Polar covalent bond is a type of chemical bond where a pair of electrons is unequally shared between two atoms. It is because, one atom spends more time with the electrons than the other atom.
Among the given options, example of same is HCl.
Acetylene molecule has carbon in:
sp -hybridization
sp2 -hybridization
sp3 -hybridization
sp3d -hybridization
In which of the following compound sp2 hybridisation is absent ?
CH ≡ C - CH = CH2
CH ≡ C - CH2 - CH3
CH3 - CH = CH2
CH2 = CH - CH2 - CH3
C - Cl bond is stronger than C - I bond because
C - Cl bond is more ionic than C - I
C - Cl bond is more ionic than C - I
C -Cl bond is more covalent than C - I
C - Cl bond length is longer than C - I
Bond energy of hydrogen gas is - 433 kJ. How much is the bond dissociation energy of 0.5 mole of hydrogen gas ?
-433 kJ
+433 kJ
-216 kJ
+216 kJ