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Carboxylic Acids And Acid Derivatives

Question
ICSEENICH12029084
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Give one good chemical test to distinguish between the following pairs of compounds:

(i) 1 Propanol and 2 Propanol.
(ii) Oxalic acid and benzoic acid.

Solution

i)  Iodoform Test: It helps to distinguish these, 2-Propanol contains the grouping - CH COCH3. So when it is warmed with I2/NaOH, iodoform, (yellow ppt) is formed. 1-Propanol does not contain this grouping. So it does not give this test.

(ii) Oxalic acid decolourises a warm solution of acidified KMn04 solution.

Some More Questions From Carboxylic acids And Acid Derivatives Chapter

When acetic acid is reacted with calcium hydroxide and the product is distilled dry, the compound formed is:

Write the structures of all enantiomers possible for lactic acid.

Carry out the following conversions:  

(i) Methyl chloride to acetic acid.

(ii) Benzene to benzoic acid

(iii) Ethanol to acetone.

Give balanced equations for the following:   

(i) Glycerol is heated with oxalic acid at 110° C (383K).

(ii) Acetamide is heated with sodium hydroxide.

(iii) Acetone reacts with hydrogen in the presence of heated copper.

Draw the isomers of 2-hydroxy propionic acid. 

Give an example (equation) for each of the following name reactions:    

(i) Aldol condensation.

(ii) Reimer-Tiemann reaction.

(iii) Rosenmund’s reductions.

Give one example for each of the following name reactions:

(i) Hell Volhard Zelinsky (HVZ) reaction,
(ii) Clemmensen’s reduction.

Give one good chemical test to distinguish between the following pairs of compounds:

(i) 1 Propanol and 2 Propanol.
(ii) Oxalic acid and benzoic acid.

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