Homologous Series

Q.

How many atoms are in ammonia?

Q.

The molecular formula of a compound is C₂H₆O. Name its homologous series.

1. Alcohol

2. Ketone

3. Alkane

4. Carboxylic acid

Q.

Methane belongs to the homologous series of alkanes.

1. True

2. False

Q.

What is the second member of the alkene series?

Q. What are differences between alkane, alkene and alkyne?

Q.

What is the general molecular formula of the homologous series of alkane?

Q.

What is meant by a homologous series? Illustrate by giving one example.

Q.

What is a homologous series and what are its characteristics? Explain with the help of alkane series.

Q.

explain homologous series?

Q.

The first three members of a homologous series are ${\mathrm{CH}}_4,{\mathrm{C}}_2{\mathrm{H}}_6,{\mathrm{C}}_3{\mathrm{H}}_8$ the fifth member

1. ${\mathrm{C}}_5{\mathrm{H}}_{12}$

2. ${\mathrm{C}}_5{\mathrm{H}}_8$

3. ${\mathrm{C}}_5{\mathrm{H}}_{10}$

4. ${\mathrm{C}}_5{\mathrm{H}}_{14}$

Q. What is a homologous series? Which two of the following organic compounds belong to the same homologous series?

Q.

Name the following chemical compounds:

1. ZnO
2. CuO
3. CaS
4. FeS

Q.

Identify the alkynes among the following hydrocarbons:

1. C₂H₆

2. C₁₂H₂₂

3. C₁₂H₂₆

4. C₁₀H₂₂

Q. What are differences between alkane, alkene and alkyne?

Q.

Identify the homologous series among the following:

1. $CHOOH$

2. $C_2{H}_{3}OOH$

3. $C_2{H}_6$

4. $C_3{H}_{5}OOH$

5. Propanone

1. 1, 2 and 5 are homologous series

2. 1, 3 and 4 belongs to homologous series

3. 1, 2 and 4 belongs to homologous series

4. 1, 2 and 5 belongs to homologous series

Q. Which amongst the following is the next homologue of ethene?

1. Propene
2. Ethyne
3. Propane
4. Ethane

Q.

Give the names and structural formula of the first three members of the homologous series of alkanes.

Q.

The hydrocarbon with the general formula C_nH_2n+2 is an -

1. Alkane

2. Alkyne

3. Alkene

4. Alcohol

Q. Identify the group of compounds that is in the same homologous series.

1. $C_2{H}_4,C_3{H}_6,C_4{H}_8$
2. $C_2{H}_6,C_5{H}_{12},C_7{H}_{16}$
3. $C_2{H}_2,C_4{H}_6,C_6{H}_{10}$
4. $C_2{H}_4,C_4{H}_6,C_6{H}_{14}$

Q.

why is tertiary carbon said to be more stable than primary or secondary ?

Q. Match the following functional groups with their names:

1. P-1; Q-2; R-3; S-4
2. P-2; Q-4; R-1; S-3
3. P-4; Q-2; R-1; S-3
4. P-3; Q-1; R-3; S-4

Q.

What is the general formula of alkenes?

1. C_nH_n

2. C_nH_2n+2

3. C_nH_2n+1

4. C_nH_2n

Q.

In Ethane $C_2{H}_6$ each carbon atom is bonded to ___ hydrogen atoms.

Q. Which of the following does not belong to homologous series of alkanes?

1. $C_2{H}_6$
2. $C_3{H}_4$
3. $C_4{H}_{10}$
4. $C_5{H}_{12}$

Q.

$C{H}_{4}and{C}_2{H}_6$ form a homologous series, they differ by:

1. $a-C{H}_4-unit$

2. $a-C{H}_2-unit$

3. $a-CH-unit$

4. $Noneoftheabove$

Q. Write down the general formula of homologous series whose third homologue is $C_4{H}_6$ ?

1. $C_{n+1}{H}_{2n-2}$
2. $C_n{H}_{2n-2}$
3. $C_n{H}_{2n+2}$
4. $C_n{H}_{2n}$

Q. The successive members of a homologous series differ by a mass of ______amu.

1. 14