Carbon and its ...

Which one of the following is not a property of carbon?

Identify the substance which is:
(i) Used in making leads of pencils.
(ii) Used as a dry lubricant.
(iii) Used in making black paint and printers ink.
(iv) Used in nuclear reactors as a moderator.

Due to the weak Van der Waals' forces and less distance between the layers, graphite:

In the Earth's crust, Carbon is found in the form of_________.

Identify the unsaturated compounds from the following :
$$(i)$$ Propane      $$(ii)$$ Propene      $$(iii)$$ Propyne      $$(iv)$$ Chloropropane

What is the name of the compound $$CH_3CH_2CH(CH_3)CH_2OH$$?

 What is the name of the compound shown in the figure?

Which of the following are members of same homologous series?

Which general formula represents the homologous series of hydrocarbons that includes the compound 1-heptyne? 

How can we get compound X back from Y? Name the process.