Question
On reaction with sodium, 1 mol of a compound X gives 1 ~mol of H _ 2 . Which one of the following compounds might be X ?
BITSAT
Chemistry
Alcohols Phenols and Ethers
2020
BITSAT 2020
BITSAT Chemistry Question (2020) — Solution
Options
- A. CH _ 3 CH _ 2 CH = CH _ 2
- B. CH _ 3 COOCH _ 2 CH _ 3
- C. CH _ 3 CH _ 2 CH _ 2 OH
- D. CH _ 2 ( OH ) CH _ 2 CH _ 2 CH _ 2 OH
Answer
D. CH _ 2 ( OH ) CH _ 2 CH _ 2 CH _ 2 OH
Step-by-step solution
Since 1 mole of compound Xreacts with Na to evolve 1 mole of H _ 2 gas, therefore the compound should have 2 active hydrogen atoms per mole which is possible only in option d. array l CH _ 2 OHCH _ 2 CH _ 2 CH _ 2 OH +2 Na \\ NaOCH _ 2 CH _ 2 CH _ 2 CH _ 2 ONa +2 H array
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