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Attempt either (a) or (b) :
(a) (i) What is homologous series ? Which two of the following organic compounds belong to the same homologous series ?
ce{C2H4},
ce{C4H10},
ce{C3H4},
ce{C4H8}
(ii) Write the product(s) in the following reactions :
(I) $\ce{CH3-CH2-OH} + \ce{CH3COOH} \xrightarrow{\text{Acid}}$
(II) $\ce{C2H5OH} + \ce{O2} \xrightarrow{\text{Burning}}$
(iii) Why does micelle formation take place when soap is added to water?
(a) (i) What is homologous series ? Which two of the following organic compounds belong to the same homologous series ?
ce{C2H4},
ce{C4H10},
ce{C3H4},
ce{C4H8}
(ii) Write the product(s) in the following reactions :
(I) $\ce{CH3-CH2-OH} + \ce{CH3COOH} \xrightarrow{\text{Acid}}$
(II) $\ce{C2H5OH} + \ce{O2} \xrightarrow{\text{Burning}}$
(iii) Why does micelle formation take place when soap is added to water?
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(a) (i)
u2022 A series of compounds in which the same functional group substitutes for hydrogen in a carbon chain./ Can be represented by a single general formula and successive members differ by $\ce{-CH2}$ unit or 14u.
u2022 $\ce{C2H4}$ and $\ce{C4H8}$ belong to the same homologous series/ are alkenes.
(ii) (I) $\ce{CH3CH2OH + CH3COOH ->[Acid] CH3COOC2H5 + H2O}$
(II) $\ce{C2H5OH + 3O2 ->[Burning] 2CO2 + 3H2O}$ (balancing may be ignored)
(iii) The ionic end of soap interacts with water while the carbon chain interacts with oil/dirt. The soap molecules thus form a structure called micelle.
u2022 A series of compounds in which the same functional group substitutes for hydrogen in a carbon chain./ Can be represented by a single general formula and successive members differ by $\ce{-CH2}$ unit or 14u.
u2022 $\ce{C2H4}$ and $\ce{C4H8}$ belong to the same homologous series/ are alkenes.
(ii) (I) $\ce{CH3CH2OH + CH3COOH ->[Acid] CH3COOC2H5 + H2O}$
(II) $\ce{C2H5OH + 3O2 ->[Burning] 2CO2 + 3H2O}$ (balancing may be ignored)
(iii) The ionic end of soap interacts with water while the carbon chain interacts with oil/dirt. The soap molecules thus form a structure called micelle.