Consider the flow diagram below that shows different organic reactions - NSC Technical Sciences - Question 4 - 2022 - Paper 2
Question 4
Consider the flow diagram below that shows different organic reactions.
Reaction 1
Reaction 2
Chloroethane
+ H₂O
Compound Y
+ HCl
4.1 Write down the TYPE of react... show full transcript
Worked Solution & Example Answer:Consider the flow diagram below that shows different organic reactions - NSC Technical Sciences - Question 4 - 2022 - Paper 2
Step 1
4.1.1 Reaction 1
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The type of reaction represented by Reaction 1 is Addition. In this reaction, ethene combines with hydrogen to form a saturated hydrocarbon.
Step 2
4.1.2 Reaction 3
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The type of reaction represented by Reaction 3 is Substitution. Here, chloroethane reacts to form another compound by replacing an atom or a group.
Step 3
4.2 Using molecular formulae, write down a balanced chemical equation for reaction 1.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The balanced chemical equation for Reaction 1 is:
C2H4+H2→C2H6
where ethene (C2H4) reacts with hydrogen (H2) to form ethane (C2H6).
Step 4
4.3.1 Identify the type of reaction.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
In reaction 2, the type of reaction is Combustion. This involves the reaction of a substance with oxygen to produce heat and light.
Step 5
4.3.2 Write down the NAME or FORMULA of compound X.
97%
117 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The formula for compound X is Carbon Dioxide (CO2).
Step 6
4.4.1 The type of reaction.
97%
121 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The type of reaction for the reaction of chloroethane with water is Substitution.
Step 7
4.4.2 TWO reaction conditions.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The two reaction conditions required for the reaction are:
Mild heat - to facilitate the reaction.
Dilute aqueous base - such as sodium hydroxide (NaOH) or potassium hydroxide (KOH), which can help promote the reaction.
