Nomenclature of Unsaturated Hydrocarbons

Q.

The IUPAC name of the compound CH₃−CH₂−CH=CH−CH₂−CH₃ is .

1. hept-3-ene
2. hex-3-ene
3. pent-3-ene

Q. The IUPAC name of the compound CH3−CH2−CH2−CH2−C||CH2−CH2−CH2−CH3
is .

1. 2-propylhex-1-ene
2. 2-butylpent-1-ene
3. 4-methene octane

Q.

Give an example of an unsaturated compound?

Q.

The molecular formula represents the __________ of a molecule of an element or compound.

Q. Specify the number of carbon atoms present in parent chain in the following compound.

1. 6

Q.

The chemical formula for carbon dioxide is CO.

1. True
2. False

Q. What is the molecular formula of a compound? Give examples.

Q.

Suggest the IUPAC name for the given compound:

1. 3-propyne

2. 2-propene

3. 1-propyne

4. 1-propene

Q. The functional group $-NC$ and $-CN$ respectively represent :

1. Nitriles, Isonitrile
2. Amides, Nitriles, Isonitrile
3. Isonitriles, Nitriles
4. Nitriles, Amine

Q.

Write the chemical formula of:

1. Magnesium oxide
2. Calcium carbonate

Q.

The IUPAC name of the given compound is

1. Pentene
2. Pent- 3- ene
3. Pent- 2- ene
4. Pentyne

Q.

Which type of hydrocarbons are alkenes and alkynes?

1. Cyclic hydrocarbons

2. Saturated aliphatic hydrocarbons

3. Unsaturated aliphatic hydrocarbons

4. Unsaturated aromatic hydrocarbons

Q.

Give the information conveyed by the chemical formula of water.

Q. Pick out the suitable statements for the given compound.

${\text{CH}}_3-{\text{CH}}_2-{\text{CH}}_2-\text{CH}=\text{CH}-{\text{CH}}_3$

1. It's a saturated compound
2. It's an alkene
3. General formula of the compound is ${\text{C}}_{\text{n}}{\text{H}}_{\text{2n}}$
4. IUPAC name is hex-4-ene

Q.

Give the IUPAC name of the following compound.

${\text{CH}}_2=\text{CH}-{\text{CH(CH}}_3{)}_2$

1. 2- methyl but- 1- ene

2. 3- methyl but- 1- ene

3. 2- methyl but- 3- ene

4. Pentene

Q. Which of the following compounds have the same word root as that of the following compound?

1. Propane and Prop-1-ene
2. Pentane and Pent-2-ene
3. Hexane and Hex-1-ene
4. Butane and But-2-ene

Q.

Define chemical formula.

Q.

Which of the following have same molecular formula?

1. 

2. 

3. 

4. 

Q. The IUPAC nomenclature of a given compound is .
${\mathrm{CH}}_2=\mathrm{CH}-{\mathrm{CH}}_2-\mathrm{CH}={\mathrm{CH}}_2$

1. penta-2, 4-diene
2. penta-1, 4-diene
3. pent-1, 4-diene

Q. Amongest the following, the acceptable name as per IUPAC nomenclature is :

1. pent-4-en-1-yne
2. pent-1-en-4-yne
3. 2, 2-dimethyl-4-ethylpentane
4. 3-hydroxybutan-1-ol

Q. The organic compounds having double or triple bond(s) in them are termed as ________________.

1. saturated compounds
2. hydrogen compounds
3. unsaturated compounds
4. none of the above

Q.

Find the alkyne among all the other alkanes in the given options.

1. $C{H}_4$

2. $C_5{H}_{12}$

3. $C_4{H}_6$

4. $C_3{H}_8$

Q. Which among the following molecules are example(s) of molecule formed by catenation property?

1. $C{H}_2=CH-C{H}_3$
2. $C{H}_3-C{H}_2-C{H}_3$
3. $H-O-H$
4. $O=C=O$

Q. The IUPAC name of the following structure is:

1. 3-oxobutan-1-oic acid
2. oxobutan-1-oic acid
3. 2-oxobutan-1-oic acid
4. none of these

Q.

What is the name of the compound shown in the figure?

1. Butene
2. Propyne
3. Butyne
4. Propyne-2

Q. The IUPAC name of the given compound is ________.

1. but-2-yne
2. but-1-yne
3. but-3-yne
4. but-1-ene

Q.

The most contributing tautomeric enol form of $MeCOC{H}_{2}C{O}_{2}Et$ is?

1. H₂C=C(OH)CH₂CO₂Et

2. MeC(OH) = CHCO₂Et

3. 2-Pentanone

4. 2-Butene

Q.

The molecular formula of the given compound is

1. $C_3{H}_8$

2. $C_2{H}_6$

3. $C_4{H}_{10}$

4. $C_4{H}_8$

Q.

Give the IUPAC name of the following compound.

${\text{CH}}_2=\text{CH}-{\text{CH(CH}}_3{)}_2$

1. 3- methyl but- 1- ene

2. 2- methyl but- 1- ene

3. 2- methyl but- 3- ene

4. Pentene

Q. Which among the following molecules are example(s) of molecule formed by catenation property?

1. $C{H}_2=CH-C{H}_3$
2. $C{H}_3-C{H}_2-C{H}_3$
3. $H-O-H$
4. $O=C=O$