Diamond is …………
a) having strong M.P & B.P
d) hard
c) bad conductor
d) all of these
Graphite is ………..
a) hard
b) soft
c) good conductor
d) b & c both
Graphite is the crystalline allotropic form of
a) copper
b) sulphur
c) tin
d) carbon
Bucky balls is the crystalline allotropic form of ………….
a) copper
b) sulphur
c) tin
d) carbon
Buckyball is discovered in ………..
a)1987
b) 1965
c) 1976
d) 1985
Explanation:Buckminsterfullerene, a sixty carbon soccer ball-shaped molecule, was discovered, named, and its structure deciphered over a ten day period of hectic activity by five scientists at Rice University in 1985. Three of these, Harry Kroto, Richard Smalley and Robert Curl, shared a Nobel Prize for its discovery in 1996.
In buckyballs, atoms are arranged in……….. structure
a) tetrahedral
b) cubic
c) octahedral
d) hollow cage
