Ethylene oxide is heated with dilute aqueous H2SO4. The product is

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Ethylene oxide is heated with dilute aqueous $H X_{2} SO X_{4}$ . The product is

Aethanal
Bethane-1,2-diol
Cethane-1,1-diol
Dethanol

Answer: B

Acid protonates the epoxide oxygen and water attacks a ring carbon, opening the ring. Both carbons end up bearing OH on adjacent carbons, giving ethane-1,2-diol.

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Answer: B

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Ethylene oxide is heated with dilute aqueous $H X_{2} SO X_{4}$ . The product is