HARD
Earn 100

Explain the structure of graphite in terms of bonding and give one property based on this structure.

Important Questions on Carbon: An important element

MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
The correct order of octane number is
EASY
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Which one is not an allotrope of carbon nanostructure?
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Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Which of the following element does not show allotropy?
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Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes

Observe the correlation in the first pair and complete the second pair.

CH3OH : Methanol. : :CH3CH2COOH : _____.  

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Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Write the name of two allotropes of carbon.
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Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
What do you understand by a lone pair of electrons?
MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Which of the following is not an allotropic form of carbon-
MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Name the important areas related to nanotechnology.
EASY
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
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.
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Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Graphite and Diamonds are two _____.
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Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes

 Draw the electron dot structure of the following:

  1. CH4
MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Allotropy is a property shown by which class of substances, elements, compounds mixtures? Give one example of allotropes of carbon.
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Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Which type of bond is formed by the carbon with other carbon atoms?
MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Which of the following statements are usually correct for carbon compounds? These
(i) are good conductors of electricity
(ii) are poor conductors of electricity
(iii) have strong forces of attraction between their molecules
(iv) do not have strong forces of attraction between their molecules
MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Which substance from the following is not obtained during destructive distillation of mineral coal?
EASY
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Why are most carbon compounds poor conductors of electricity?
MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Identify the correct electron dot structure of nitrogen molecule in the following:
MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Which of the following pairs have layer lattice structure in solid-state chemistry
HARD
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Explain the structure of carbon nano-buds.
MEDIUM
Science>Chemistry>Carbon: An important element>Carbon: Occurrence, properties and allotropes
Define allotrope of an element with examples.