The structure of diborane (B2H6) contains
four 2C-2e- bonds and four 3C-2e- bonds
two 2C-2e- bonds and two 3C-3e- bonds
two 2C-2e- bonds and four 3C-2e- bonds
four 2C-2e- bonds and two 3C-2e- bonds
Buckminster fullerene is :
pure graphite
C-60
diamond
C-90
B.
C-60
C-60 is called Buckminster fullerene. It is discovered in 1990 as a constituent of soot. Its shape is like a soccer ball.
In silica (SiO2), each silicon atom is bonded to
two oxygen atoms
four oxygen atoms
one silicon and two oxygen atoms
one silicon and four oxygen atoms