Nomenclature of Hydrocarbons with More Than One Branch

Q.

Difference between saturated and unsaturated compounds?

Q.

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

1. $2,2-\mathrm{dimethylpropane}$
2. $1,1,1,1-\mathrm{tetramethylmethane}$
3. $2-\mathrm{methylbutane}$

Q.

Benzene is an unsaturated hydrocarbon.

1. True

2. False

Q. Why is ethylene an unsaturated hydrocarbon?

Q.

In addition reaction, unsaturated hydrocarbon is converted to saturated hydrocarbon by addition of hydrogen.

1. True

2. False

Q.

Alkenes are saturated hydrocarbons.

1. True

2. False

Q.

In addition reaction, an unsaturated hydrocarbon is converted to saturated hydrocarbon by the addition of hydrogen.

1. True

2. False

Q. (i) What type of reaction takes place between ethane and chlorine to form monochloroethane?
(ii) The reaction between ethene and chlorine forms only one product. Name the type of the reaction.
(iii) (a) Draw the structural formula of ethene.
(b) What is the feature of the ethene structure, which allows ethene to react with chlorine in the way it does?

Q.

Why carbon form strong bonds with other carbon atoms like Hydrogen oxygen nitrogen and sulphur?

Q.

The IUPAC name of the given compound is 2, 4- dimethyl pentane.

1. True

2. False

Q. What are hydrocarbons? Write the name and general formula of I) saturated hydrocarbon.II) unsaturated hydrocarbon draw the structure of one hydrocarbon of each type. How can an unsaturated hydrocarbon be made saturated. (5marks)

Q.

The IUPAC name of the given compound is

1. 3- Ethyl 2- Methylhexane

2. 4- Ethyl 5- Methylhexane

3. 2- Methyl 3- Ethylhexane

4. 5- Methyl 4- Ethylhexane

Q.

The IUPAC name of the given compound is

1. 4- ethyl- 6- methylheptane

2. 4- ethyl- 2- methylheptane

3. 3- ethyl- 5- methylhexane

4. 2- ethyl- 4- methylheptane

Q.

The IUPAC name of the given compound is

1. 1, 2- Dimethyl 3- ethyl butane

2. 2, 3- Diethyl butane

3. 3, 4- Dimethyl hexane

4. 3- Ethyl 4- methyl pentane

Q. Give the name and formulae of one member of each of the following:
(a) saturated hydrocarbons.
(b) unsaturated hydrocarbons.

Q.

The given organic compound has a parent chain which is 8 carbons long.

1. False

2. True

Q.

____ hydrocarbons undergo addition reaction.

1. Unsaturated

2. saturated

3. supersaturated

4. Alkanes

Q.

Analyse the given compound below

How many carbon atoms are there in the longest chain?

1. 5

2. 3

3. 4

4. 6

Q. Why do we classify hydrocarbon as saturated and unsaturated
​​​​​​

Q. Why are the hydrocarbons distinguished as saturated and unsaturated

Q. Find the odd one out from the following:
C₃H₈, C₅H₁₀, C₂H₆, CH₄

Q.

The IUPAC of the given compound is

1. 2- Methyl, 4- propyl butane

2. 2, 3, 5- Trimethyl hexane

3. 1, 1- Dimethyl 2, 4- dimethyl pentane

4. 4- Methyl, 2- propyl butane

Q. Fill in the blanks with the correct words from the brackets:
Alkenes are the (i) ........... (analogous/homologous) series of (ii) ............ (saturated/unsaturated) hydrocarbons. They differ from alkanes due to the presence of (iii) ......... (double/single) bonds. Alkenes mainly undergo (iv) .......... (addition/substitution) reactions.

Q. how does the naming of hydro carbon take place?

Q.

The IUPAC name of the following compound is?

1. 4, 5-dimethyl-5, 6-dipropyl decane

2. 4-sec-butyl-4-methyl-5-propylnonane

3. 4-isobutyl-4-methyl-5-propylnonane

4. 3, 4-dimethyl-1, 2, 3-tripropylheptane

Q. How many carbon atoms are present in butene?

1. five
2. four
3. three
4. six

Q. Give the structure of E.

Q.

The IUPAC name of the compound

$H_{3}C-\underset{C_2{H}_5}{\underset{|}{CH}}-\underset{C_2{H}_5}{\underset{|}{CH}}-C{H}_3$

1. 2, 3-diethylbutane

2. 2-ethyl-3-methylpentane

3. 3, 4-dimethylhexane

4. 3-methyl-2-ethylpentane

Q. Give reasons for the following:
(I) Ethane does not undergo addition reactions, but ethene does.
(II) Ethyne is more active than ethane.
(III) Hydrocarbon are excellent fuels.

Q.

Select the aliphatic saturated hydrocarbon from the given list of hydrocarbons.

1. C₃H₆

2. C₅H₁₂

3. C₄H₈

4. C₂H₂