Q25
Among the various allotrope of carbon
A.
Coke is the hardest, graphite is the softest
B.
Diamond is the hardest, coke is the softest
C.
Diamond is the hardest, graphite is the softest
AnswerD.
Diamond is the hardest, lamp black is the softest
Answer: Option C
Solution
Answer: Option C
Solution:
Among the various allotrope of carbon diamond is the hardest, graphite is the softest.