Click the correct answer (True or False).
Click the correct answer.
Which of the following is mostly used to make carry bags, pipes and household articles?
Polyvinyl chloride
Polythene
Bakelite
Hydrocarbon
Which of the following is an amorphous form of carbon?
Gas carbon
Diamond
Graphite
Fullerene
Which of the following types of coal contains 50–60% coal?
Lignite
Peat
Bituminous
Anthracite
Which of the following is a foul-smelling, thick black liquid used for making dyes, drugs and explosives?
Coke
Coal gas
Coal tar
Ammonia solution
Which of the following is a mixture of 5% carbon and 95% oxygen?
Dry ice
Urea
Washing soda
Carbogen
Which of the following is/are prepared using carbon dioxide?
Washing soda
Baking soda
Both washing soda and baking soda
Bleaching powder
Click the correct answer.
Carbon occurs as
and graphite in free state.
carbon dioxide
limestone
chalk
diamond
The various physical forms in which an element can exist are called
of that element.
organic compounds
inorganic compounds
allotropes
allotropy
Diamond is
in all solvents.
insoluble
soluble
dissolvable
mixable
is a greyish-black, opaque substance with a metallic lustre.
Diamond
Graphite
Fullerenes
Buckminsterfullerene
Buckminsterfullerene was named after the American architect
.
Harry Kroto
Buckminster Fuller
Robert Curl
Richard Smalley
is the phenomenon of existence of an element in more than one form.
Electro-negativity
Allotropy
Electronic configuration
Amalgam
is the purest form of carbon.
Diamond
Coke
Coal
Graphite
charcoal is used to separate a mixture of noble gases.
Wood
Bone
Sugar
Activated
is a type of coke which is a black and porous substance used in household furnaces.
Hard coke
Soft coke
Lampblack
Gas carbon
