Allenes Quiz

sp3 hybridization

dsp2 hybridization

sp hybridization (correct)

sp2 hybridization

When they have an odd number of cumulated double bonds and the terminal carbons of the axis are attached to different atoms

When they have an even number of cumulated double bonds and the terminal carbons of the axis are attached to different atoms (correct)

When they have an odd number of cumulated double bonds and the terminal carbons of the axis are attached to the same atoms

When they have an even number of cumulated double bonds and the terminal carbons of the axis are attached to the same atoms

Due to the conjugation of double bonds

Due to the presence of sp3 hybridization in the central carbon

Due to the absence of pi-bonds

Due to the fact that the two pi-bonds of allene are at right angles to each other (correct)