Chain Isomerism

Q.

How many structural isomers can you draw for pentane?

1. $2$

2. $4$

3. $3$

4. $6$

Q. Define or explain chain isomerism and position isomerism with an example in each case. [4 MARKS]

Q.

Which of the following is 2, 2-dimethyl butane?

1. 

2. 

3. 

4. 

Q. Which of the following can exhibit cis-trans isomerism?

1. 
2. 
3. 
4. 

Q.

Butane and 2- methyl propane exhibit position isomerism.

1. True

2. False

Q. Pentan- 2- one and 3- methylbutan- 2- one are a pair of

1. Functional isomers
2. Chain isomers
3. Positional isomers
4. Sterioisomers

Q.

The number of isomers that can be obtained theoretically on monochlorination of 2 - methylbutane is:

1. 3

2. 4

3. 1

4. 2

Q.

Which one of the following is neo-hexane or the isomeric form of hexane?

1. 

2. 

3. 

4. 

Q. (a) Define isomerism.
(b) Give the IUPAC name of the isomer C₄H₁₀ which has a branched chain.

Q.

How many chain isomers does a compound having molecular formula ${\text{C}}_5{\text{H}}_{10}$ has?

1. 1, 5- pentadiene

2. 2, 3- pentadiene

3. 1- pentene

4. 2- pentene

Q. Is Ethylbutane an isomer of hexane?

Q.

How many structural isomers are possible for C₄H₁₀ molecule?

1. 3

2. 2

3. 4

4. 1

Q. Differentiate between ketone and aldehyde. With examples.

Q.

Which of the following cannot be an isomer of pentane?

1. n-pentane

2. 2, 2 dimethyl propane

3. 3, 3 dimethyl butane

4. 2- methyl butane

Q.

Identify the IUPAC names of isomeric forms of pentyne from the given choices.

1. A is n-pentyne & B is 1-pentyne

2. A is 1-pentyne & B is 2-pentyne

3. A is n-pentyne & B is 2-pentyne

4. A is 1-pentyne & B is n-pentyne

Q. Explain how to name the IUPAC for class 10th.

Q.

Which of the following is not a part of stereoisomers?

1. Chain isomerism

2. Functional isomerism

3. Geometrical isomerism

4. Optical isomerism

Q.

What is the chain isomer of n butane?

1. Isopropane

2. Tri-methyl methane

3. Tri-methyl propane

4. Isobutane

Q.

Which of the following is position and chain isomer of
$C{H}_3-C{H}_2-\underset{O}{\underset{||}{C}}-C{H}_2-C{H}_3$:

1. 

2. CH₃ - CH₂- CH₂- CH₂- CHO

3. 

4. CH₃ - CH₂- C - CH₂ - CH₃

Q.

Nonane is a hydrocarbon which is isomeric with 2-methyl-3-ethyl hexane.

1. Hexane
2. Octane

Q. Which of the following is not found in alkenes?

1. Geometrical isomerism
2. Metamerism
3. Chain isomerism
4. Position isomerism

Q. Discuss the various types of isomerism and also give two examples of each. [5 MARKS]

Q. Give the IUPAC names of the following compounds numbered (i) to (v). The IUPAC names of the compounds on the left are to guide you into giving the correct names of the compounds on the right.

Q.

What is chain isomerism in relation to organic molecules?

Q.

Pentan-2-one and 3-methylbutan-2-one are a pair of

1. Functional isomers
2. Chain isomers
3. Positional isomers
4. Sterioisomers

Q. Fill in the blanks:

(j) But-1-ene and but-2-ene are examples of -----------isomerism. (Chain / position / functional)

Q.

Which of the following is/are chain isomer(s) of hexane?

1. 

2. 

3. 

4. 

Q. Write the molecular formula of pentane.

Q. Differentiate between ketones and aldehydes.

Q.

Identify the isomerism from the image given below.

1. Position isomerism

2. Stereo isomerism

3. Chain isomerism

4. Functional isomerism