MCQ
Oxygen molecule is paramagnetic because
- ABonding electrons are more than antibonding electrons
- BContains unpaired electrons
- ✓Bonding electrons are less than antibonding electrons
- DBonding electrons are equal to antibonding electrons
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The correct decreasing order of enthalpies of reaction for producing carbocation is

$(A)$ Sublimation enthalpy
$(B)$ Ionisation enthalpy
$(C)$ Hydration enthalpy
$(D)$ Electron gain enthalpy
The total number of above properties that affect the reduction potential is ...... .
