Structural Isomerism

Q.

Identify the functional group present in the following compound and name according to the IUPAC system: ${\mathrm{C}}_3{\mathrm{H}}_7\mathrm{COOH}$

Q. A compound that has the molecular formula $C_4{H}_{10}O$ can show:

1. Metamerism
2. Functional Isomerism
3. Chain Isomerism
4. Positional Isomeris

Q. An organic compound has molecular formula $C_9{H}_{18}$. Its all carbon atoms are $s{p}^3$ hybridized and its all hydrogen atoms are identical. Its structural formula can be

1. 
2. 
3. 
4. 

Q. Which of the following compounds are structural isomers of $C_5{H}_{10}O$?
(I) 2-methylbutanal
(II) Propyl ethanoate
(III) Pentanal
(IV) Pentanone

1. I and IV
2. I, II and III
3. I, III and IV
4. I and III

Q.

${\mathrm{CH}}_3{\mathrm{CH}}_2\mathrm{OH}$ & ${\mathrm{CH}}_3-\mathrm{O}-{\mathrm{CH}}_3$ are

1. position isomer

2. chain isomer

3. homolgs

4. functional group isomer

Q.
The total number of all possible isomeric ketones of molecular weight 100 and molecular formula $\left(C_6{H}_{12}O\right)$ is/are:

1. 5
2. 4
3. 3
4. 6

Q. How many structural isomers are possible for $C_7{H}_{16}$?

1. 6
2. 7
3. 8
4. 9

Q. How many acyclic structural isomers of $C_4{H}_{7}Cl$ is possible?

1. 10
2. 5
3. 6
4. 8

Q. A ketone has molar mass 86. Which of the following cannot be IUPAC name for this ketone?

1. 2-pentanone
2. 2-methylbutanone
3. 3-methylbutan-2-one
4. 3-pentanone

Q. How many total structural isomers are obtained when three hydrogen atoms are replaced by chlorine atom from molecular formula $C_3{H}_8$?

1. 5
2. 4
3. 6
4. 3

Q. A hydrocarbon has a molecular formula $X\left(C_6{H}_6\right)$ . The only type of unsaturation that $X$ has are triple bonds. How many different $IUPAC$ names can be assigned to $X$?

1. 5
2. 3
3. 4
4. 7

Q.

The degree of unsaturation or index of hydrogen deficiency in the following is:

i) $C_6{H}_{14}$

ii) $C_4{H}_6$

iii) $C_6{H}_6$

1. 0, 2, 4

2. 1, 0, 2

3. 4, 1, 0

4. 2, 0, 4

Q. The correct sequence of relationships between the compounds of pairs (i) - (iv) respectively is:

1. Identical, enantiomers, diastereomers and structural isomers
2. Enantiomers, identical, structural isomers and diastereomers
3. Enantiomers, identical, diastereomers and structural isomers
4. Identical, identical, diastereomers and structural isomers

Q.

How many aromatic amines can be represented by the molecular formula C₇H₉N ?

1. 2

2. 3

3. 4

4. 5

Q. How many acyclic structural isomers of $C_4{H}_{7}Cl$ is possible?

1. 10
2. 5
3. 6
4. 8

Q.

How many aromatic amines can be represented by the molecular formula C₇H₉N ?

1. 2

2. 3

3. 4

4. 5

Q. How many structural isomers can diphenylmethane have when one of the hydrogen atoms is replaced by a chlorine atom?

1. 6
2. 4
3. 7
4. 8

Q. Assuming a hydrocarbon $C_5{H}_{10}$ without any double bond, how many different structures exist that contain only one methyl group?

1. 1
2. 5
3. 3
4. 2

Q. The total number of structural isomers possible with molecular formula $C_3{H}_{6}C{l}_2$ are :

1. 2
2. 3
3. 4
4. 5

Q. How many structural isomers exist for $C_4{H}_{8}O$ which are ethers with no $s{p}^2$ hybridised atoms?

1. 7
2. 4
3. 6
4. 3