Question

Which of the following statements are correct?
i) Diamond and graphite are isotopes of carbon
ii) Carbon is tetravalent in all its compounds.
iii) In diamond each carbon atom is linked to four other carbon atoms.
iv) Petroleum and coal are fossil fuels.

Answer 1

ii) Carbon is tetravalent in all its compounds.

iii) In diamond each carbon atom is linked to four other carbon atoms.

iv) Petroleum and coal are fossil fuels.

are the correct statements