Question

the number of covalent bond in CH 3 into 4 c

Answer 1

Ans: Structural formula of butane (C4H10) is : 
CH3-CH2-CH2-CH3.

Number of Carbon -Carbon bonds = 3
Number of Carbon- Hydrogen bonds = 10
Total number of bonds in Butane = 
=Number of Carbon -Carbon bonds + Number of Carbon- Hydrogen bonds 
= 3 +10
=13