WorksheetsCARBON AND ITS COMPOUNDS
Total questions: 10
Worksheet time: 3mins
The use of diamond in abrasives is due to its
high melting point
hardness
octahedral shape
durability
Graphite and diamond are similar in that they
have octahedral shape
have same density
form carbon(IV) oxide o combustion
conduct electricity
Which of the allotropes of carbon is a constituent of a lead pencil?
Graphite
Diamond
Lampblack
Soot
The 'gasification of coke' is used for the manufacture of
producer gas
natural gas
synthetic gas
industrial gas
Which of the following compounds is a neutral oxide?
Carbon(IV) oxide
Carbon(II) oxide
Sulphur (IV) oxide
Sulphur (VI) oxide
A form of carbon used for absorbing poisonous gases and purification of noble gases is
wood charcoal
animal charcoal
carbon fibres
carbon black
Synthetic gas is a mixture of
CH4 and H2O
CH4 and H2
CO and H2
CO2 and H2
The allotropes of carbon used in the decolourisation of sugar of
graphite
soot
charcoal
lamp black
When steam is passed over red - hot carbon, the substances produced are
hydrogen and trioxocarbonate(IV) acid
hydrogen, oxygen and carbon(II)oxide
hydrogen and carbon(II) oxide
hydrogen and carbon(IV) acid
Carbon is tetravalent because
electrons in both the 2s and 2p orbitals are equivalent
the electrons in all the orbitals of carbon are equivalent
the 2s and 2p orbitals hybridised
all the atomic orbitals of carbon hybridise
