The IUPAC name for the following compound is:

1. 2,5-Dimethyl-6-carboxy-hex-3-enal

2. 6-Formyl-2-methyl-hex-3-enoic acid

3. 2,5-Dimethyl-5-carboxy-hex-3-enal

4. 2,5-Dimethyl-6-oxo-hex-3-enoic acid

The IUPAC name of the following compound is -

1.  3-Bromo-5-methylcyclopentanoic acid
2.  4-Bromo-2-methylcyclopentanecarboxylic acid
3.  3-Bromo-5-methylcyclopentane carboxylic acid
4.  5-Bromo-3-methylcyclopentanoic acid

The IUPAC name of the following compound is-

1. 3-Amino-4-hydroxymethyl-5-nitrobenzaldehyde

2. 2-Nitro-4-hydroxymethyl-5-amino benzaldehyde

3. 4-Amino-2-formyl-5-hydroxymethylnitrobenzene

4. 5-Amino-4-hydroxymethyl-2-nitrobenzaldehyde

The IUPAC name of the following compound is -

1.  4,4-Dimethyl-3-hydroxybutanoic acid
2. 2-Methyl-3-hydroxypentan-5-oic acid
3. 4-Methyl-3-hydroxypentanoic acid
4. 3-Hydroxy-4-methylpentanoic acid

The correct IUPAC name of the following compound is : 
  
1. 5-Chloro-4-methyl-1-nitrobenzene
2. 2-Chloro-1-methyl-4-nitrobenzene
3. 2-Methyl-5-nitro-1-chlorobenzene
4. 3-Chloro-4-methyl-1- nitrobenzene

The IUPAC name for the following compound is :

1. 3,5-Dimethyl-4-propylhept-1-en-6-yne
2. 3-Methyl-4-(3-methylprop-1-enyl)-1-heptyne
3. 3-Methyl-4-(1-methylprop-2-enyl)-1-heptene
4. 3,5-Dimethyl-4-propylhept-6-en-1-yne

The correct decreasing order of priority for the functional groups of organic compounds in the IUPAC system of nomenclature is:

1. –SO₃H, –COOH, –CONH₂, –CHO

2. –CHO, –COOH, –SO₃H, –CONH₂

3. –CONH₂, –CHO, –SO₃H, –COOH 

4. –COOH, –SO₃H, –CONH₂, –CHO

The IUPAC name of the following compound is:

1. 3, 3-Dimethyl-1-hydroxycyclohexane

2. 1,1-Dimethyl-3-hydroxycyclohexane

3. 3,3-Dimethyl-1-cyclohexanol

4. 1,1-Dimethyl-3-cyclohexanol

Choose the compound with incorrect IUPAC nomenclature among the following.

1.		Ethylbutanoate
2.		3-Methylbutanal
3.		2-Methyl-3-pentanone
4.		2-Methyl-3-butanol