When halogenoalkanes are hydrolysed under reflux, a new compound A is formed. Compound A burns with a good supply of air it produces two products (compounds B and C). Further reaction of compound A with acidified K2Cr207 under reflux will give a new compound D. The functional group of compound D can be detected by adding a few drops of X reagent which gives a yellow/orange coloured precipitate. Further investigation revealed when compound D reacts with Tollen's reagent, the result is negative. However, the prolonged boiling with the oxidizing agent of compound D produces a new compound E and two side products (carbon dioxide and water). The reaction of compound E with solid PCl, produced a new compound F and released Y fumes. a) Identify the possible condensed structure of compound A, B, C, D, E and F. State the IUPAC name for each of the compound. b) Show the complete reaction for the formation of compounds B and C when compound A burns with a good supply of air. c) Propose the complete reaction of compound D when react with X reagent and state the reagent X. d) Explain why compound D will gives negative result with Tollen's reagent. e) Show the complete chemical equation of compound E from compound D.

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When halogenoalkanes are hydrolysed under reflux, a new compound A is formed. Compound A burns
with a good supply of air it produces two products (compounds B and C). Further reaction of
compound A with acidified K2Cr20, under reflux will give a new compound D. The functional group
of compound D can be detected by adding a few drops of X reagent which gives a yellow/orange
coloured precipitate. Further investigation revealed when compound D reacts with Tollen's reagent,
the result is negative. However, the prolonged boiling with the oxidizing agent of compound D
produces a new compound E and two side products (carbon dioxide and water). The reaction of
compound E with solid PCl, produced a new compound F and released Y fumes.
a) Identify the possible condensed structure of compound A, B, C, D, E and
name for each of the compound.
State the IUPAC
b) Show the complete reaction for the formation of compounds B and C when compound A burns
with a good supply of air.
c) Propose the complete reaction of compound D when react with X reagent and state the
reagent X.
d) Explain why compound D will gives negative result with Tollen's reagent.
e) Show the complete chemical equation of compound E from compound D.
f) Discuss the new formation of compound F and state the possible Y fumes present in the
reaction.
Transcribed Image Text:When halogenoalkanes are hydrolysed under reflux, a new compound A is formed. Compound A burns with a good supply of air it produces two products (compounds B and C). Further reaction of compound A with acidified K2Cr20, under reflux will give a new compound D. The functional group of compound D can be detected by adding a few drops of X reagent which gives a yellow/orange coloured precipitate. Further investigation revealed when compound D reacts with Tollen's reagent, the result is negative. However, the prolonged boiling with the oxidizing agent of compound D produces a new compound E and two side products (carbon dioxide and water). The reaction of compound E with solid PCl, produced a new compound F and released Y fumes. a) Identify the possible condensed structure of compound A, B, C, D, E and name for each of the compound. State the IUPAC b) Show the complete reaction for the formation of compounds B and C when compound A burns with a good supply of air. c) Propose the complete reaction of compound D when react with X reagent and state the reagent X. d) Explain why compound D will gives negative result with Tollen's reagent. e) Show the complete chemical equation of compound E from compound D. f) Discuss the new formation of compound F and state the possible Y fumes present in the reaction.
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