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Solution


Q.

Pentane has the molecular formula C5H12. It has:
1 5 covalent bond  
2 12 covalent bonds  
3 16 covalent bonds  
4 17 covalent bonds  

Ans.

(3)

Structural formula of pentane is:

Number of C - C covalent bonds = 4

Number of C - H covalent bonds = 12

Hence the total number of covalent bonds in the structure of pentane is 16.