EASY
Earn 100

Which of the following increases the octane number?

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Important Questions on Hydrocarbons

MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Define allotrope of an element with examples. 

 
EASY
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Which one is not an allotrope of carbon nanostructure?
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Which of the following is not an allotropic form of carbon-
EASY
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Graphite and Diamonds are two _____.
HARD
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Explain the structure of carbon nano-buds.
EASY
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
A non-metal X exists in two different forms Y and Z. Y is the hardest natural substance, whereas Z is a good conductor of electricity. Identify X, Y, and Z.
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Which of the following pairs have layer lattice structure in solid-state chemistry
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Allotropy is a property shown by which class of substances, elements, compounds mixtures? Give one example of allotropes of carbon.
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
The correct order of octane number is
HARD
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Write two points of difference in the structures of diamond and graphite.
EASY
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State any two uses of diamond.
HARD
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Describe the structure of diamond. Draw a simple diagram to show the arrangement of carbon atoms in diamond.
EASY
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
One of the following is not an allotrope of carbon. This is:
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
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?
EASY
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
State one use of diamond which depends on its 'extraordinary brilliance' and one use of graphite which depends on its being 'black and quite soft'.
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Give any two differences between the properties of diamond and graphite. What causes these differences?
HARD
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Explain why, graphite can be used as a lubricant but diamond cannot.
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
Why is graphite used for making dry cell electrodes but diamond is not?
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
How can diamonds be made artificially? How do synthetic diamonds differ from natural ones?
MEDIUM
Chemistry>Organic Chemistry>Hydrocarbons>Petroleum Products
State any two uses of graphite.