MEDIUM
10th CBSE
IMPORTANT
Earn 100

Diamond and graphite are the covalent compounds of carbon elements (C).
(a)True
(b)False

45.45% studentsanswered this correctly

Important Questions on Carbon And its Compounds
MEDIUM
10th CBSE
IMPORTANT
Name the scientist who disproved the ‘vital force theory’ for the formation of organic compounds. (Friedrich Wohler/ Berzelius)

EASY
10th CBSE
IMPORTANT
Name the element whose allotropic form is graphite.

EASY
10th CBSE
IMPORTANT
In addition to some propane and ethane, LPG cylinders contain mainly two isomers of another alkane. Name the two isomers and write their condensed structural formula.

MEDIUM
10th CBSE
IMPORTANT
Buckminsterfullerene is a spherical molecule in which 60 carbon atoms are arranged in interlocking hexagonal and pentagonal rings of carbon atoms.
(A) How many hexagons of carbon atoms are present in one molecule of buckminsterfullerene?
(B) How many pentagons of carbon atoms are present in one molecule of buckminsterfullerene ?

MEDIUM
10th CBSE
IMPORTANT
Name the black substance of pencil. Will the current flow through the electrical circuit when we use the sharpened ends of the pencil to complete the circuit?

MEDIUM
10th CBSE
IMPORTANT
How does graphite act as a lubricant?

EASY
10th CBSE
IMPORTANT
Name the hardest natural substance known.

EASY
10th CBSE
IMPORTANT
Which of the following molecule is called buckminsterfullerene?
