Birch and Na/NH3 vs Lindlar on drawn substrates

14 questions on Birch and Na/NH3 vs Lindlar on drawn substrates from the Reduction, Oxidation and Hydrolysis in Organic Chemistry chapter: 3 NEET level, 5 JEE Main, 6 JEE Advanced. Each one opens with its answer and solution.

• The alkyne shown is treated with sodium metal in liquid ammonia. Which structure is the major product? NEET level, drawn structure
• The alkyne shown is treated with H2 over Lindlar catalyst. Which structure is the major product? NEET level, drawn structure
• The compound shown is subjected to Birch reduction (Na, liquid NH3, ethanol). Which structure is the major product? NEET level, drawn structure
• Which reagent converts the alkyne shown into the cis (Z) alkene? JEE Main level, drawn structure
• The compound shown is treated with Na in liquid NH3 with ethanol. Which structure is the major product? JEE Main level, drawn structure
• The compound shown is subjected to Birch reduction (Na, liquid NH3, ethanol) and then neutralised. Which structure is the major product? JEE Main level, drawn structure
• The alkyne shown is reduced by different methods. Select ALL correct statements. JEE Main level, drawn structure
• The alkyne shown is first reduced with Na in liquid NH3 and the product is then oxidised with PCC in CH2Cl2. Which structure is the final product? JEE Advanced level, drawn structure
• The compound shown is treated with Birch conditions (Na, liquid NH3, ethanol) and the crude diene is stirred with dilute aqueous acid at room temperature (mild ... JEE Advanced level, drawn structure
• The alkyne shown is treated with Na in liquid NH3, then with m-CPBA, and finally with aqueous H3O+ (anti opening of the epoxide). What is the outcome? JEE Advanced level, drawn structure
• The compound shown contains an alkene and a terminal alkyne. Select ALL correct statements. JEE Advanced level, drawn structure
• The alkyne shown is hydrogenated over Lindlar catalyst to the alkene. Counting all configurational isomers (geometrical and optical together) of the constitutio... JEE Advanced level, drawn structure
• Which pair of reagents converts the alkyne shown into the E alkene and the Z alkene respectively? JEE Main level, drawn structure
• The alkyne shown is hydrogenated over Lindlar catalyst and the product is then oxidised with excess Jones reagent. Which structure is the final organic product? JEE Advanced level, drawn structure