1. Ⓐ of molecular formula CH2O is identified as HCHO, formaldehyde.
2. Formaldehyde reacts with CH3MgI followed by hydrolysis to give ethanol, CH3 -CH2 OH B as the product.
3. Ethanol Ⓑ reacts with PCl5 to give C2H5Cl, Ethyl chloride © as the product.
4. CH3 -CH2Cl © on reaction with alcoholic KOH undergoes dehydrohalogenation to give ethylene CH2 =CH3 Ⓓ as the product.
A |
HCHO |
Formaldehyde |
B |
CH3 - CH2OH |
Ethanol |
C |
CH3-CH2Cl |
Ethylchloride |
D |
CH2- CH2 |
Ethylene |