Q6. Complete the following reactions:
a) H2C=CH2 + H2O H2SO4→
b) HC≡CH + Br2→
c) C2H5OH + Na →
d) CH3COOH + C2H5OH→
Answers
1.C2H4 + H2O gives C2H5OH (ethanol).
2.HC≡CH + Br2→CHBr=CHBr
3.C2H5OH + Na = C2H5ONa + H2
4.CH3COOH + C2H5OH = CH3COOC2H5 + H3O
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Answer: The complete reactions are given below:
Explanation:
a) H2C=CH2 + H2O H2SO4 → H3O+ + CH3CH2OH
This is an acid-catalyzed addition reaction, where the water adds across the double bond of ethene to form ethanol.
b) HC≡CH + Br2 → BrHC=CHBr
This is a halogenation reaction in which the acetylene double bond is broken and replaced by two bromine atoms. The substance is 1,2-dibromo ethene.
c) C2H5OH + Na → C2H5ONa + H2↑
This is the result of a reaction between ethanol and sodium metal.
d) CH3COOH + C2H5OH → CH3COOC2H5 + H2O
Acetic acid (CH3COOH) reacts with ethanol (C2H5OH) to form ethyl acetate (CH3COOC2H5) and water in this esterification reaction (H2O). An acid, such as sulfuric acid or hydrochloric acid, catalyzes the reaction by the carbonyl group of acetic acid, making it more reactive to the alcohol.
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