Q17 / 75 · JEE Main 2026 (28 January Shift 1) · Chemistry
Given below are the four isomeric compounds $(\mathrm{P}, \mathrm{Q}, \mathrm{R}, \mathrm{S})$
Identify correct statements from below.
A. $\mathrm{Q}, \mathrm{R}$ and S will give precipitate with $2,4-\mathrm{DNP}$.
B. P and Q will give positive Bayer's test.
C. Q and R will give sooty flame.
D. R and S will give yellow precipitate with $\mathrm{I}_{2} / \mathrm{NaOH}$.
E. Q alone will deposit silver with Tollen's reagent Choose the correct option.
Identify correct statements from below.
A. $\mathrm{Q}, \mathrm{R}$ and S will give precipitate with $2,4-\mathrm{DNP}$.
B. P and Q will give positive Bayer's test.
C. Q and R will give sooty flame.
D. R and S will give yellow precipitate with $\mathrm{I}_{2} / \mathrm{NaOH}$.
E. Q alone will deposit silver with Tollen's reagent Choose the correct option.
- AA, B, D and E only
- BA and E only
- CC and E only
- Correct answerDA, C and E only
Solution
(A) Q, R, S all three give 2, 4 DNP test as they have Aldehyde/ketone group
(C) Q & R gives sooty flame
(E) Q gives Tollens reagent test
(C) Q & R gives sooty flame
(E) Q gives Tollens reagent test
Hence, the correct answer is option: 'D'.