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(B) (i) How would you name the following :
I. $$\begin{aligned}& \ce{CH3-CH2-C=O \\ & H}\end{aligned}$$
II. $\ce{CH3-C=CH}$
(ii) When ethanol reacts with ethanoic acid in the presence of conc. $\ce{H2SO4}$, a substance with sweet smell is produced. Answer the following :
I. State the class of compounds to which the sweet smelling compounds belong.
II. Write the chemical equation for the reaction.
(iii) Why soaps do not produce foam with hard water?
I. $$\begin{aligned}& \ce{CH3-CH2-C=O \\ & H}\end{aligned}$$
II. $\ce{CH3-C=CH}$
(ii) When ethanol reacts with ethanoic acid in the presence of conc. $\ce{H2SO4}$, a substance with sweet smell is produced. Answer the following :
I. State the class of compounds to which the sweet smelling compounds belong.
II. Write the chemical equation for the reaction.
(iii) Why soaps do not produce foam with hard water?
Show SolutionHide Solution↓
(i) I. Propanal (1 Mark)
II. Propyne (1 Mark)
(ii) I. Ester group (1 Mark)
II. $\ce{CH3-COOH + CH3-CH2OH ->[Acid] CH3-C(=O)-O-CH2-CH3 + H2O}$ (1 Mark)
(iii) Soaps reacts with calcium and magnesium salts present in hard water to form scum (insoluble substance). (1 Mark)
II. Propyne (1 Mark)
(ii) I. Ester group (1 Mark)
II. $\ce{CH3-COOH + CH3-CH2OH ->[Acid] CH3-C(=O)-O-CH2-CH3 + H2O}$ (1 Mark)
(iii) Soaps reacts with calcium and magnesium salts present in hard water to form scum (insoluble substance). (1 Mark)