Match List-I with List-II.
List-I (Reagents)List-II (Reaction Name Involving Aldehydes)
A. textH_2, textPd-textBaSO_4I. Etard Reaction
B. textSnCl_2, textHClII. Rosenmund Reduction
C. textCrO_2textCl_2, textCS_2III. Gatterman–Koch Reaction
D. textCO, textHCl, textAnhyd. textAlCl_3IV. Stephen Reaction
Choose the correct answer from the options given below:

Solution & Explanation

### Core Logic - A. textH_2, textPd-textBaSO_4 rightarrow II. Rosenmund Reduction - B. textSnCl_2, textHCl rightarrow IV. Stephen Reaction - C. textCrO_2textCl_2, textCS_2 rightarrow I. Etard Reaction - D. textCO, textHCl, textAnhyd. textAlCl_3 rightarrow III. Gatterman–Koch Reaction ### Step 1: Final Conclusion Combining the correct matching gives A-II, B-IV, C-I, D-III, which is option (4). ### Pattern Recognition Sees: standard name reactions for aldehyde preparation. Trap: Confusing Etard reagent with Gatterman-Koch or Stephen reduction. ### Chapter Mix Class 12 Chemistry: Aldehydes, Ketones and Carboxylic Acids

Reference Study Guides

More Aldehydes, Ketones and Carboxylic Acids Questions — jee_main_2026_21_jan_evening

Practice all Aldehydes, Ketones and Carboxylic Acids previous-year questions →

Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)