Consider the following organic reactions - NSC Technical Sciences - Question 4 - 2024 - Paper 2
Question 4
Consider the following organic reactions.
Reaction 1:
H H
| |
H-C-C-H + H2O -> Compound X + H2
Reaction 2:
C2H2 + O2 -> CO2 + H2O + Heat
Reaction 3:
C4H8 ... show full transcript
Worked Solution & Example Answer:Consider the following organic reactions - NSC Technical Sciences - Question 4 - 2024 - Paper 2
Step 1
4.1.1 Name the type of reaction.
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Answer
The type of reaction in Reaction 1 is a Substitution or Hydrolysis reaction.
Step 2
4.1.2 Write down the CONDENSED STRUCTURAL FORMULA of compound X.
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Answer
The condensed structural formula of compound X is CH3CH2OH.
Step 3
4.1.3 Is compound X a PRIMARY, SECONDARY or TERTIARY alcohol?
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Compound X is a PRIMARY alcohol because it is bonded to one alkyl group.
Step 4
4.2.1 Balance the chemical equation for this reaction.
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Answer
The balanced equation for Reaction 2 is:
2C2H2+5O2−>4CO2+2H2O+Heat
Step 5
4.2.2 Is this an EXOTHERMIC or ENDOTHERMIC reaction? Give a reason.
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Answer
This reaction is EXOTHERMIC. Heat is released during the reaction, which indicates that energy is being released to the surroundings.
Step 6
4.3.1 Name the type of ADDITION reaction taking place.
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The type of addition reaction taking place in Reaction 3 is Hydrogenation.
Step 7
4.3.2 Write down the IUPAC name of product Y.
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The IUPAC name of product Y is Butane.
Step 8
4.3.3 Write down the NAME or FORMULA of the catalyst used.
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The catalyst used is Platinum (Pt), Palladium (Pd), or Nickel (Ni).
Step 9
4.4.1 Define the term polymer.
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A polymer is a large molecule composed of smaller monomer units covalently bonded to each other in a repeating pattern.
Step 10
4.4.2 Write down the NAME of the monomer used in this reaction.
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