CBSE Class 10 Science 2018 Solved Paper

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Question : 8
Total: 27
(a) Why are most carbon compounds poor conductors of electricity?
(b) Write the name and structure of a saturated compound in which the carbon atoms are arranged in a ring. Give the number of single bonds present in this compound.
Solution:  
(a) Electricity is conducted by moving electrons. But carbon forms covalent bonds by sharing of electrons. It does not have free electrons.
(b) Cyclohexane is a saturated compound in which carbon atoms are arranged in a ring.
There are 6 single bonds present in this compound.
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