The total number of hydrogen atoms in product A and product B is ______.

Answer: 10
Solution
with alcoholic undergoes elimination (E2) to give ethene, product A (, 4 H atoms).
with aqueous undergoes substitution () to give ethanol, product B (, 6 H atoms).
Total hydrogen atoms in A and B: .
with aqueous undergoes substitution () to give ethanol, product B (, 6 H atoms).
Total hydrogen atoms in A and B: .

JEE Main · 2024 · 31 Jan 2024 · Shift 1 · Integer answer