Correct IUPAC name -
A) 1 - methyl- 3 - ethyl cyclo hexene
B) 5 - ethyl- 1 – methyl cyclo hexene
C) 2 - ethyl- 4 - methyl cyclo hexene
D) 3 - ethyl- 1 - methyl cyclo hexene

The IUPAC name of given compound is (1) 1-Ethyl-3-methyl cyclohexane (2) 1-Methyl-3-ethyl cyclohexane (3) 3-Methyl-I-ethyl cyclohexane (4) 3-Ethyl-I-methyl cyclohexane

The correct IUPAC name of 2- ethyl -3- pentyne is

4-ethyl-3,3 di methyl hexane is

The IUPAC name of ethyl methyl amine is

3-methyl-1-pentene

What is the IUPAC name of (A) 3-Ethyl-5-methyl-1-n- propylbenzene (B) 3-Ethyl-5- propyltoluene (C) 3-Ethyl-1-methyl-5-n- propylbenzene (D) 1-Ethyl-3-methyl-5-n- propylbenzene

Which of the following IUPAC name is incorrect? (i) 2 -Methyl- 3 -ethylpentane (ii) 2 -Ethyl- 3 -methylpentane (iii) 3 -Methyl- 2 -ethylpentane (iv) 3 -Ethyl- 2 -methylpentane.