Alkene product count on dehydration of drawn alcohols

14 questions on Alkene product count on dehydration of drawn alcohols from the Organic Reaction Mechanisms IV: Elimination chapter: 2 NEET level, 5 JEE Main, 7 JEE Advanced. Each one opens with its answer and solution.

• The alcohol shown is dehydrated with concentrated sulfuric acid at 170 degrees C. Ignoring rearrangement and counting E and Z isomers as different compounds, ho... NEET level, drawn structure
• The alcohol shown is heated with concentrated sulfuric acid. Which structure is the major product? NEET level, drawn structure
• The alcohol shown is dehydrated with acid. Assume no rearrangement and count E and Z isomers as different compounds. How many distinct alkenes can form? Give th... JEE Main level, drawn structure
• The alcohol shown is dehydrated by warming with dilute sulfuric acid. Which structure is the major alkene? JEE Main level, drawn structure
• The alcohol shown is heated with concentrated acid. The secondary carbocation expands the four-membered ring to a more stable cation. Which structure is the maj... JEE Main level, drawn structure
• The alcohol shown is heated with concentrated sulfuric acid. Which structure is the major alkene? JEE Advanced level, drawn structure
• The alcohol shown is dehydrated with acid, and the secondary cation can undergo a 1,2-hydride shift to a tertiary cation. Counting E and Z isomers as different ... JEE Advanced level, drawn structure
• The alcohol shown is heated with acid. Assume that the secondary cation undergoes a single 1,2-methyl shift to a tertiary cation and that both the unrearranged ... JEE Advanced level, drawn structure
• The alcohol shown is heated with concentrated sulfuric acid. A primary cation is not formed as a stable intermediate; a methyl group migrates as water leaves. W... JEE Advanced level, drawn structure
• The alcohol shown is dehydrated with concentrated sulfuric acid. Select all correct statements. JEE Main level, drawn structure
• The alcohol shown is dehydrated with acid, and hydride shift is allowed. Counting E and Z isomers as different compounds, select all correct statements. JEE Advanced level, drawn structure
• The alcohol shown is dehydrated with acid, and the secondary cation can undergo a 1,2-hydride shift to a tertiary cation. Counting E and Z isomers as different ... JEE Advanced level, drawn structure
• This primary alcohol is dehydrated only by concentrated sulfuric acid at about 170 degrees C, whereas its tertiary isomer dehydrates in warm dilute acid. What i... JEE Main level, drawn structure
• The alcohol shown is treated with phosphorus oxychloride in pyridine, which converts the OH group into a good leaving group for a concerted E2 step with no carb... JEE Advanced level, drawn structure