If an organic compound, Q, is reacted with phosphorus pentachloride, hydrogen chloride fumes are given off. If Q is then heated with acidified aqueous potassium dichromate(VI), the solution changes to green. What is Q?
- A$\text{CH}_3\text{CH}_2\text{CHO}$
- B$\text{CH}_3\text{CH}_2\text{CO}_2\text{H}$
- C$\text{CH}_3\text{CH(OH)CH}_3$
- D$(\text{CH}_3)_3\text{COH}$