HARDMCQ SINGLEJEE Mains ChemistryInorganic ChemistryPractical Organic ChemistryAchiever Section

Column I Column II (compound) (tests) (a) (p) 2,4-DNP test (b) (q) Yellow ppt. with NaOH + I₂ (c) O || CH C H (r) Red ppt. with Fehling’s solution (d) (s) Silver mirror with Tollen’s reagent

A.(a-pq) (b-ps) (c-pqrs) (d-pq)

B.(a-pqrs) (b-pq) (c-ps) (d-pq)

C.(a-ps) (b-pq) (c-pq) (d-pqrs)

Explanation

(a) 2, 4 DNP test is given by Aldehyde or Ketone Silver mirror with Tollen's reagent is also given by all aldehydes. (b) 2, 4 DNP test & gives yellow ppt with NaOH + I₂ 6 5 3 2 6 5 2 3 Yellow ppt C H COCH NaOH I C H CO Na CHI → (c) 3 || O CH C H Acetaldehyde gives 2,4 - DNP test. Acetaldehyde gives Red PPt with fehling solution – – 3 3 2 2 Redppt CH CHO 2Cu 5OH CH COO Cu O 3H O → Acetaldehyde gives Yellow ppt with NaOH + I₂ Acetaldehyde gives silver mirror test with Tollen's reagent. – 3 3 2 – 3 2 3 CH CHO 2 Ag NH 3OH CH COO 2Ag 2H O 4NH →

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