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Solution


Q.

Read the passage carefully and answer the following questions from (i) to (v):

As a versatile element, carbon can form large compounds because of its tetravalency and the property of catenation that it exhibits. Here, catenation refers to the combination of carbon atoms itself to form large molecules. Carbon forms stronger covalent bonds with itself and other elements such as hydrogen, oxygen, sulphur, nitrogen and chlorine. This is because its nucleus has a strong force of attraction and holds these bonds tightly together.

 

 

(i) The molecular formula of ethane C2H6 has:
1 6 covalent bonds.  
2 7 covalent bonds.  
3 8 covalent bonds.  
4 9 covalent bonds.  

Ans.

(2)