4.1 Write down the TYPE of ADDITION reaction represented by:
4.1.1 Reaction 1
4.1.2 Reaction 2
4.2 Use STRUCTURAL FORMULAE to write down a balanced chemical equation for Reaction 3 - NSC Technical Sciences - Question 4 - 2023 - Paper 2
Question 4
4.1 Write down the TYPE of ADDITION reaction represented by:
4.1.1 Reaction 1
4.1.2 Reaction 2
4.2 Use STRUCTURAL FORMULAE to write down a balanced chemical equati... show full transcript
Worked Solution & Example Answer:4.1 Write down the TYPE of ADDITION reaction represented by:
4.1.1 Reaction 1
4.1.2 Reaction 2
4.2 Use STRUCTURAL FORMULAE to write down a balanced chemical equation for Reaction 3 - NSC Technical Sciences - Question 4 - 2023 - Paper 2
Step 1
4.1.1 Reaction 1
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Answer
The type of addition reaction represented by Reaction 1 is Hydrohalogenation.
Step 2
4.1.2 Reaction 2
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Answer
The type of addition reaction represented by Reaction 2 is Hydrogenation.
Step 3
4.2 Use STRUCTURAL FORMULAE to write down a balanced chemical equation for Reaction 3.
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Answer
The balanced chemical equation for Reaction 3 (Conversion of 2-bromopropane to Propan-2-ol) can be represented as:
C3H7Br+H2O→C3H8O+HBr
Step 4
4.3 Write down TWO reaction conditions for Reaction 1.
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Answer
The two reaction conditions for Reaction 1 include:
No water
Unreactive solvent
Step 5
4.4.1 Write down the NAME of the reaction referred to in the statement above.
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Answer
The name of the reaction is Combustion.
Step 6
4.4.2 Use MOLECULAR FORMULAE to write down a balanced equation for the reaction above.
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Answer
The balanced chemical equation for the combustion of ethyne is:
2C2H2+5O2→4CO2+2H2O+ energy
Step 7
4.5.1 Polymerisation
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Answer
A polymerisation reaction is a chemical reaction in which monomer molecules join together to form a polymer.
Step 8
4.5.2 Macromolecule
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A macromolecule is a molecule consisting of a large number of atoms.
Step 9
4.6.1 Draw a symbol of a p-n junction diode and indicate the anode and cathode.
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Answer
The symbol of a p-n junction diode includes an arrow pointing in the direction of current flow (from p-type to n-type) and a vertical line representing the cathode. The p-side is the anode and is marked with a '+' sign.
