Most acidic hydrogen in drawn molecules

13 questions on Most acidic hydrogen in drawn molecules from the General Organic Chemistry II: Acids and Bases chapter: 2 NEET level, 8 JEE Main, 3 JEE Advanced. Each one opens with its answer and solution.

• Which hydrogen of the compound shown is the most acidic? NEET level, drawn structure
• Which hydrogens of the compound shown are the most acidic? NEET level, drawn structure
• The structures shown are four anions, each obtained from the molecule drawn by removing one proton. Which anion results from loss of the most acidic hydrogen? JEE Main level, drawn structure
• Which hydrogens of the compound shown are the most acidic? JEE Main level, drawn structure
• The compound shown is a cyclic 1,3-diketone. Select ALL the correct statements. JEE Main level, drawn structure
• Which hydrogen of the compound shown is the most acidic? JEE Main level, drawn structure
• Which hydrogen atoms of the compound shown are the most acidic? JEE Main level, drawn structure
• In the compound shown, count the sets of chemically equivalent hydrogen atoms whose pKa is below 12. Use these approximate values: carboxylic acid O-H 4, phenol... JEE Advanced level, drawn structure
• The compound shown is a beta-ketoester. Select ALL the correct statements. JEE Main level, drawn structure
• Which hydrogen of the compound shown is the most acidic? JEE Main level, drawn structure
• Which hydrogens of the compound shown are the most acidic? JEE Main level, drawn structure
• Which hydrogen of the compound shown (a lactone-based enediol) is the most acidic? JEE Advanced level, drawn structure
• Which hydrogens of the compound shown are the most acidic? JEE Advanced level, drawn structure