Nomenclature of Alcohols

Q.

Write the IUPAC name of ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2{\mathrm{CH}}_3$.

Q.

1-Chloropropane and 2-Chloropropane are:

1. Chain isomers

2. Functional and postion

3. Functional isomerism

4. Position isomerism

Q. Are halogens considered as functional groups or side chains or substituents?

Q.

The functional group of ethanol and ethanal is

1. $-OH$and $-C=O$ respectively.

2. $-C=O$ and $-CHO$ respectively.

3. $-CHO$ and $-C=O$ respectively.

4. $-OH$ and $-CHO$ respectively.

Q. " Root word for naming a hydrocarbon with 3 carbons atoms is ."

1. Meth-
2. Eth-
3. Prop-
4. But-

Q.

Write structural formulae of the following compounds.
(i) Ethyl alcohol (ii) Acetaldehyde (iii) Propionic acid

Q.

C₃H₇OH- This is the molecular formula for :

1. Ethanol

2. Butanol

3. Propanol

4. Septanol

Q. Question 25
Which of the following does not belong to the same homologous series?
(a) ${\text{CH}}_4$
(b) ${\text{C}}_2{\text{H}}_6$
(c) ${\text{C}}_3{\text{H}}_8$
(d) ${\text{C}}_4{\text{H}}_8$

Q. Fill in the blanks:

(i) The root in the IUPAC name of an organic compound depends upon the number of carbon atoms in --------(any chain/ principal chain)

Q. How will you differentiate between an alcohol and a carboxylic acid?

Q. Write the molecular formula and structure formula of ethanol.

Q.

Identify the functional group and the corresponding class of compounds for the following cases:

1. ${\text{CH}}_3-{\text{CH}}_2-{\text{CH}}_2-\text{OH}$
2. ${\text{CH}}_3-{\text{CH}}_2-{\text{CH}}_2-\text{COOH}$
3. ${\text{CH}}_3-{\text{CH}}_2-\text{CHO}$
4. ${\text{CH}}_3-\text{CO}-{\text{CH}}_2-{\text{CH}}_3$
5. ${\text{CH}}_3-{\text{CH}}_2-\text{COOH}$
[5 Marks]

Q. For an element of group no. 13 sidden jump on ionization energy will be observed 1. IE1 and IE4 2.IE1 IE2 3.IE2 IE3. 4.IE4 IE5

Q. acidic character of the halides of group 17

Q. Question 29
The first member of alkyne homologous series is
(a) ethyne
(b) ethene
(c) propyne
(d) methane

Q.

$C{H}_4$ and $C_2{H}_6$ form a homologous series, they differ by:

1. CH₄ unit

2. CH₂ unit

3. CH unit

4. CH₃ unit

Q. Match the following compounds with respective word roots as per their IUPAC nomenclature.

1. But
2. Pent
3. Hex

Q. The IUPAC nomenclature of $C{H}_3-CH-\stackrel{\stackrel{OH}{|}}{\underset{\underset{H}{|}}{C}}-C{H}_3$ is

1. Sec-Butyl alcohol
2. iso - Butanol
3. Butan - 2- ol
4. 3- Butanol

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

1. Hexane and hex-1-ene
2. Pentane and pent-2-ene
3. Butane and but-2-ene
4. Propane and prop-1-ene

Q. Identify the correct order for ionisation energies from the following options:

[1 mark]

1. Li < F < C < O
2. Li < C < O < F
3. Li < O < C < F
4. C < Li < F < O

Q. What is the name of the chemical compound in the given figure?

1. Heptanal
2. Hexan-5-one
3. Hexanal
4. Hexan-2-one