Question
A. $CH_3CHO$
B. $H-C≡C-H$
Also write down their general molecular formula.
B. $H-C≡C-H$
Also write down their general molecular formula.
✓
Answer
Homologous series: A series of compounds of the same family in which each member has the same type of carbon skeleton and functional group, and differs from the next member by a constant difference of one methylene group $(-CH_2-)$ in its molecular and structural formula is called as homologous series.
A. $CH_3CHO$ :
Comparing these molecular formulae and assigning the number of carbon atoms as ‘n’, the following general formula is deduced: $C_nH_{2n}O/C_nH_{2n-1}CHO$ (where $n = 1, 2, 3, …$).
B. $H-C≡C-H$ :
Comparing these molecular formulae and assigning the number of carbon atoms as ‘n’, the following general formula is deduced: $C_nH_{2n-2}$ (where $n = 2, 3,4,….$).
A. $CH_3CHO$ :
Comparing these molecular formulae and assigning the number of carbon atoms as ‘n’, the following general formula is deduced: $C_nH_{2n}O/C_nH_{2n-1}CHO$ (where $n = 1, 2, 3, …$).
B. $H-C≡C-H$ :
Comparing these molecular formulae and assigning the number of carbon atoms as ‘n’, the following general formula is deduced: $C_nH_{2n-2}$ (where $n = 2, 3,4,….$).
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Explain the law of mass action and give its mathematical representation.
Explain : Relation between $K_c$ and $K_p$.
→An atom of an element contains 29 electrons and 35 neutrons. Deduce-
a. the number of protons
b. the electronic configuration of that element.
a. the number of protons
b. the electronic configuration of that element.
Represent graphically log10 (activity /dps) versus t/s. What is its slope ?
State and explain Pauli’s exclusion principle.
Write a note on cis and trans form of unsaturated fats.
What are the key ideas of MO theory?###What are the salient features of MO theory?
Give examples of functional groups which can appear only as prefix?
Enlist properties of
i. white phosphorus.
ii. red phosphorus.
i. white phosphorus.
ii. red phosphorus.
Explain the following with two examples:
i. straight chain alkyl groups
ii. branched chain alkyl group
i. straight chain alkyl groups
ii. branched chain alkyl group