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
Acetylene molecule has carbon in:
sp -hybridization
sp2 -hybridization
sp3 -hybridization
sp3d -hybridization
A.
sp -hybridization
Carbon of CH≡CH or C2H2 has sp- 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