1.1 The name of the functional group of ETHANOL is …
A carboxyl - NSC Technical Sciences - Question 1 - 2024 - Paper 2
Question 1
1.1 The name of the functional group of ETHANOL is …
A carboxyl.
B carbonyl.
C hydroxyl.
D formyl.
1.2 Which homologous series has London forces, dipole-dipole ... show full transcript
Worked Solution & Example Answer:1.1 The name of the functional group of ETHANOL is …
A carboxyl - NSC Technical Sciences - Question 1 - 2024 - Paper 2
Step 1
The name of the functional group of ETHANOL is …
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Answer
The functional group of ethanol is the hydroxyl group. Therefore, the correct answer is C.
Step 2
Which homologous series has London forces, dipole-dipole forces and hydrogen bonds?
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Answer
The series that exhibits London forces, dipole-dipole forces, and hydrogen bonds is carboxylic acids. Thus, the answer is D.
Step 3
An element in group 3 that can be used for doping:
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Answer
Silicon is commonly used for doping in semiconductors, making C the correct answer.
Step 4
Which ONE of the following combinations of standard conditions is applicable to a galvanic cell with non-gaseous reactants and products?
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Answer
The appropriate standard conditions for a galvanic cell with non-gaseous reactants is B: 1 mol.dm⁻³; 101.3 kPa.
Step 5
A solution that can conduct an electric current through the movement of ions:
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Answer
An electrolyte is a solution that conducts electricity due to the movement of ions. Therefore, the correct answer is D.
