Question

An organic compound A , having the formula C3H8O, on treatment with copper at 573K gives B. B does not reduce Fehling’s solution but gives a yellow precipitate of the compound C with I2/NaOH. Deduce the structures of A,B and C. Also write the respective chemical reactions.

Answer 1

A- ch3ch2ch20h B- ch3ch2cho and c-ch3c0ch3 propanol -----;-propanal propanal---; propanone Which give IODO FORM TEST

Answer 2

Identification of compound A, B, and C

Given:

• Molecular formula of compound A = $C_3H_8O$
• Compound 'A' on treatment with copper at 573K gives B.
• Compound 'B' on reaction with $I_2/NaOH$ yields Compound 'C'.

To find:

Compounds 'A', 'B' and 'C' = ?

Explanation:

• From the given molecular formula the compound 'A' is identified as secondary alcohol (Propanol).
• When the vapors of secondary alcohol is passed over  heated copper at 573K, it leads to dehydrogenation and this yields a ketone called acetone.
• The chemical equation involved in the reaction is as follows:

$C_{3} H_{8} O \stackrel{C u / 573 K}{\longrightarrow} C H_{3}-C O-C H_{3}$.

• Thus from the above reaction, compound 'B' is identified as acetone or propanone.
• As acetone or propanone is a ketone, it does not reduces Fehling's solution.
• When acetone is made to react with $I_2/NaOH$ it leads to yellow color precipitate due to the formation of iodoform along with sodium acetate, sodium iodide and water as by product.
• The chemical equation involved in the reaction is as follows:

$CH_3COCH_3+3I_2+4NaOH\rightarrow CH_3COO-Na+CHI_3+3NaI+3H_2O$

Conclusion:

From the above-given chemical equations compounds A', 'B' and 'C' are identified as follows:

1. Compound A: Propanol $(C_3H_8O)$
2. Compound B: Propanone $(CH_3COCH_3)$
3. Compound C: Iodoform $(CHI_3)$

Learn more about such concept

Identify the compound X on the basis of the reactions given below.

Also, write the name and chemical formulae of A, B and C.

+ Zn--> A + H2(g)

X + HCl ----> B + H2O

+ CH3COOH------------> C + H2O

brainly.in/question/2703105

(a) name the compounds ch3cooh and identify the functional group (b)give a chemical test to identify this compound (c) name the gas evolved when this compound acts on carbonate. hoe would you identify this gas

brainly.in/question/2453054