IUPAC name of the following compound is \(\begin{array}{*{20}{c}} {\rm C{H_3}}\\ {}\\ {} \end{array}\begin{array}{*{20}{c}} {\rm -\ CH\ - }\\ | \ \ \ \\ {\rm C{H_3}} \end{array}\begin{array}{*{20}{c}} {\rm OC{H_3}}\\ {}\\ {} \end{array}\)
1
2-methoxy-2-methyl ethane
2
2-methoxy propane
3
Isopropyl methyl ether
4
1-methoxy-1-methyl ethane