1. State True or False: Carbon atoms linked to a chain can also be branched. (i) TRUE (ii) FALSE

Question

Carbon atoms can be linked together to form chains of varying lengths. These chains can be branched also. Cn addition, hydrogen atom or other atoms on these carbon chains can be replaced by any of the functional groups that we saw above. The presence of a functional group such as alcohol decides the properties of the carbon compound, regardless of the length of the carbon chain. For example, the chemical properties of CH₃OH, C₂H₅OH, C₃H₇OH and C₄H₉OH are all very similar. Hence, such a series of compounds in which the same functional group substitutes for hydrogen in a carbon chain is called a homologous series.

1. State True or False: Carbon atoms linked to a chain can also be branched.

(i) TRUE

(ii) FALSE

2. State true or false: The functional group present in the compound decide its properties eg- phenol.

(i) TRUE

(ii) FALSE

3. What are functional group?

(i) Functional groups are specific groupings of atoms within molecules that have their own characteristic properties, regardless of the other atoms present in a molecule.

(ii) Functional groups are non- specific groupings of atoms within molecules that have different characteristic properties, regardless of the other atoms present in a molecule.

4. Compounds having same functional groups and substitutes mainly hydrogen and carbon are called as _____.

(i) Non homologous series

(ii) Homologous series

5. Example of homologous series are-

(i) CH₄

(ii) C₂H₆

(iii) Both A and B

Answer 1

1. (i) TRUE

2. (i) TRUE

3. (i) Functional groups are specific groupings of atoms within molecules that have their own characteristic properties, regardless of the other atoms present in a molecule.

4. (ii) Homologous series

5. (iii) Both A and B