When the hybridization state of carbon atom changes from sp3 to sp2 and finally to sp, the angle between the hybridized orbitals:
Decreases gradually
Decreases considerably
Not effected
Increases progressively
On catalytic hydrogenation ethylene gives ethane. During this reaction
hybridization of carbon atoms changes from SP2 to SP3
bond angle decreases from 120 to 109.5
C-C Bond length increases from 1.34 A° to 1.54 A°
all of these