An organic compound $$[\mathrm{A}]\left(\mathrm{C}_5 \mathrm{H}_{12} \mathrm{O}\right)$$, on reaction with conc. $$\mathrm{H}_2 \mathrm{SO}_4$$ at $$443 \mathrm{~K}$$ gives $$[\mathrm{B}]$$ as one of the products. Compound [B] undergoes further reaction with $$\mathrm{O}_3$$ and $$\mathrm{Zn} / \mathrm{H}_2 \mathrm{O}$$ to give Propanone and Ethanal as products. Identify compound [A]
Match the compounds given in column I with the corresponding most stable Carbocations formed by each, as given in Column II, when they undergo acidic dehydration in presence of Conc. $$\mathrm{H}_2 \mathrm{SO}_4$$.
| No. | Column I | No. | Column II |
|---|---|---|---|
| A | 2-Methylbutan-1-ol | P | $${(C{H_3})_2}\mathop C\limits^ + - CH{(C{H_3})_2}$$ |
| B | Butan-2-ol | Q | $$C{H_3} - C{H_2} - C{H_2} - \mathop C\limits^ + {H_2}$$ |
| C | 3, 3-Dimethylbutan-2-ol | R | $${(C{H_3})_2}\mathop C\limits^ + - C{H_2} - C{H_3}$$ |
| D | Butan-1-ol | S | $$C{H_3} - \mathop C\limits^ + H - C{H_2} - C{H_3}$$ |
Identify the starting compound from the following data:
$$\mathrm{C}_6 \mathrm{H}_{14} \mathrm{O}(\mathrm{X})$$ on reaction with $$\mathrm{HI}$$ yields a haloalkane (A) and an alcohol (B). Compound (A) on reaction with aqueous $$\mathrm{NaOH}$$ gives an alcohol (C). Compounds (B) and (C) on reaction with $$\mathrm{CrO}_3$$ in anhydrous medium yields Butanone and Ethanal respectively.