Which of the following species exhibits paramagnetism?

1.	A carbocation	2.	A free radical
3.	A carbanion ion	4.	All of the above

The structure of cis-bis (propenyl) ethene is:

1. 

2. 

3. 

4. 

A student assigned the name 1,4-butadiene to the given compound.

 \(\stackrel{1}{\mathrm{C}} \mathrm{H}_2=\stackrel{2}{\mathrm{C}} \mathrm{H}-\stackrel{3}{\mathrm{C}} \mathrm{H}=\mathrm{CH}_2 .\)

Which statement is correct?

1. The name is correct.

2. He committed an error in the selection of the carbon chain.

3. He committed an error in the position of the double bond.

4. Unpredictable

The IUPAC name of ,

 is-

1. 2-Chloromethyl-4-methyl-hexanal

2. 1-Chloro-4-ethyl-2-pentanal

3. 1-Chloro-4-methyl-2-hexanal

4. 1-Chloro-2-aldo-4-methylhexane

The IUPAC name of the compound is-
\(CH_2=C-CH_2-C \equiv CH\\ ~~~~~~~~~~~~~|\\ ~~~~~~~~~~~~CH_3\)

 1. 2-Methylpent-1-en-4-yne

2. 4-Methylpent-4-en-1-yne

3. 2-Methylpent-2-en-4-yne

4. 4-Methylpent-1-en-4-yne

IUPAC name of, CH₃CH(OH)CH₂CH₂COOH is-

1. 4-Hydroxypentanoic acid

2. 1-Carboxy-3-butanoic acid

3. 1-Carboxy-4-butanol

4. 4-Carboxy-2-butanol

IUPAC name of the compound, ClCH₂CH₂COOH is-

1. 3-Chloropropanoic acid

2. 2-Chloropropanoic acid

3. 2-Chloroethanoic acid

4. Chlorosulfonic acid

IUPAC suffix name of -COX is-

1. oyl halide              

2. Halocarbonyl

3. Carbamoyl              

4. None of the above

IUPAC name of C₆H₅CN is-

1. Phenyl nitrile            

2. Benzonitrile

3. Benzyl nitrile           

4. Phenyl cyanide

IUPAC name of the compound,  is-

1. But-2-en-1-ol                

2. 1-Hydroxy but-1-ene

3. 4-Hydroxy butene-3           

4. But-1-en-1-ol