Question

Given below are the four isomeric compounds \(P, Q, R, S\):
\(P\): Aromatic compound containing an \(-\mathrm{OH}\) group 
\(Q\): Aromatic compound containing an \(-\mathrm{CHO}\) group (aldehyde) 
\(R\): Aromatic compound containing a ketone group 
\(S\): Aromatic compound containing a ketone group Identify the correct statements from below: 
[A.] \(Q, R\) and \(S\) will give precipitate with \(2,4\)-DNP. 
[B.] \(P\) and \(Q\) will give positive Baeyer’s test. 
[C.] \(Q\) and \(R\) will give sooty flame. 
[D.] \(R\) and \(S\) will give yellow precipitate with \(I_2/\mathrm{NaOH}\). 
[E.] \(Q\) alone will deposit silver with Tollens’ reagent. Choose the correct option.

• A. A, B, D and E only
• B. C and E only
• C. A and E only
• D. A, C and E only

Hint:

Remember: Tollens’ test is specific for aldehydes, while \(2,4\)-DNP reacts with all aldehydes and ketones.

Answer 1

The Correct Option is D