MCQ
निम्नलिखित अभिक्रिया पर विचार कीजिए:-

- A$CH _3 CH _2- O - CH _2- CH _3$
- B$CH _3- CH _2- O - SO _3 H$
- ✓$CH _3 CH _2 OH$
- D$CH _2= CH _2$

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