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12th Standard English Medium Chemistry Subject Carbonyl Compounds Creative 5 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 25
    5 x 5 = 25
  1. An organic compound (A) C2H3OCI on treatment with Pd and BaSO4 gives (B) C2H4O which answers iodoform test. (B) when treated with cone.H2SO4 undergoes polymerisation to give (C) a cyclic compound. Identify (A), (B) and (C) and explain the reactions.

  2. An organic compound (A) with molecular formula C3H6O undergoes iodoform reaction. Two molecules of compound (A) react with dry HCI to give compound (B) (C6H10O). Compound (B) reacts with one more molecule of compound (A) to give compound (C) (C9H14O). Identify (A), (B) and (C). Explain the reactions.

  3. An organic compound A (C2H3N) on reduction with SnCI2/HCI gives B (C2H4O) which reduces Tollen's reagent. Compound B on reduction with N2H4/C2H5ONa gives C (C2H6). Identify the compounds A, B and C. Explain the reactions involved.

  4. An organic compound (A) of molecular formula C7H6O is called as oil of bitter almonds. (A) on oxidation gives (B) of molecular formula C7H6O2 which gives brisk effervescence with NaHCO3 solution. When (A) is refluxed with aqueous alcoholic (KCN) compound (C) is formed. Identify A, B and C and write the equations.

  5. Ail organic compound. (A) C7H6O reduces Tollens reagent. Compound (A) reacts with acetic anhydride in the presence of anhydrous sodium acetate and gives an unsaturated acid (B). Compound (A) reacts with acetone in the presence of alkali and gives (C). What are (A)(B) and (C) Explain the reactions.

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