NTA Abhyas 2020
- Exam
- NTA Abhyas
- Year
- 2020
- Subject
- Chemistry
- Chapter
- Aldehydes and Ketones
NTA Abhyas 2020 · Chemistry · Aldehydes and Ketones
An organic compound X is oxidized by using acidified K_ 2 C r_ 2 O_...
An organic compound X is oxidized by using acidified {\text{K}_{2}\text{C}{\text{r}_{2}{\text{O}_{7}. The product obtained reacts with phenyl hydrazine, but does not answer silver mtextrror test. The possible structure of X is
Options
- A\text{C}{\text{H}_{3}\text{C}\text{O}\text{C}{\text{H}_{3}
- B{\left(\text{C}{\text{H}_{3}\right)}_{2}\text{C}\text{H}\text{O}\text{H}
- C\text{C}{\text{H}_{3}\text{C}\text{H}\text{O}
- D\text{C}{\text{H}_{3}\text{C}{\text{H}_{2}\text{O}\text{H}
Correct answer
B. {\left(\text{C}{\text{H}_{3}\right)}_{2}\text{C}\text{H}\text{O}\text{H}
Step-by-step solution
The oxidation product of X reacts with phenyl hydrazine, thus it contains group. The same product does not give silver mirror test. Thus, it is a ketone, because only aldehydes give silver mirror test.
Thus, the compound X must be alcohol, as only secondary alcohols give ketones on oxidation and hence, X is {\left(\text{C}{\text{H}_{3}\right)}_{2}\text{C}\text{H}\text{O}\text{H}.
Thus, the compound X must be alcohol, as only secondary alcohols give ketones on oxidation and hence, X is {\left(\text{C}{\text{H}_{3}\right)}_{2}\text{C}\text{H}\text{O}\text{H}.