1.1 Which ONE of the following is the product formed in the Haber process?
A - NSC Physical Sciences - Question 1 - 2017 - Paper 2
Question 1
1.1 Which ONE of the following is the product formed in the Haber process?
A. Nitrogen
B. Ammonia
C. Nitric acid
D. Sulphuric acid
1.2 A carbonyl group is the f... show full transcript
Worked Solution & Example Answer:1.1 Which ONE of the following is the product formed in the Haber process?
A - NSC Physical Sciences - Question 1 - 2017 - Paper 2
Step 1
Which ONE of the following is the product formed in the Haber process?
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Answer
The Haber process is known for synthesizing ammonia (NH₃) from nitrogen and hydrogen gas. Thus, the answer is B. Ammonia.
Step 2
A carbonyl group is the functional group of …
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Answer
A carbonyl group (C=O) is characteristic of aldehydes and ketones. Therefore, the correct answer is B. ketones.
Step 3
Consider the structure of an organic compound below.
The IUPAC name of this compound is:
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Answer
To determine the IUPAC name, we analyze the structure. Assuming the compound is fully branched and the longest chain has a specific branching, the correct attribution could vary, but let's choose A. 2,3-dimethyl-2-ene as a plausible correct answer based on maximum branching presented.
Step 4
Consider the reaction represented below.
Which ONE of the following CORRECTLY gives the type of reaction that takes place and the IUPAC name of product X?
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Answer
The reaction likely involves the elimination of a small molecule (like water), leading to the formation of an alkene product. Therefore, the correct answer is B. Elimination, Ethene.
Step 5
Consider the following balanced equation of a chemical reaction:
Which ONE of the following statements about the reaction is correct?
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Answer
The reaction is an electrolytic one involving energy absorption for the conversion. Therefore, the correct answer is C. electrolytic cell and absorbs energy.
Step 6
The reaction represented below represents the reaction taking place in an electrochemical cell:
Which ONE of the following statements about the reaction is correct?
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Answer
In this type of cell, the anode is where oxidation occurs, usually at Pb in this case, making the answer A. Pb at the anode to Ni at the cathode.
Step 7
A solution has a pH = 1. This solution …
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Answer
A solution with a pH of 1 is highly acidic and contains a significant concentration of H⁺ ions with virtually no OH⁻ ions, thus the answer is A. contains no OH⁻ ions.
Step 8
A potential energy diagram can be used to show the activation energy (Ea) and the heat of reaction (ΔH) of a reaction.
Which ONE of the following combinations of values of Ea and ΔH CANNOT be obtained for any reaction?
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Answer
The combination which cannot occur is A. 50 -100 because it implies an unfavorable reaction where the activation energy is less than the heat of reaction.
Step 9
Initially, 2 mol CO(g) and 2 mol H2(g) are sealed in a container.
At equilibrium, the amount of C2H4O(g) in the mixture will be …
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Answer
Based on the stoichiometry of the reaction, it's plausible that the equilibrium amount remains at A. 1 mol.
Step 10
In which ONE of the following graphs does the dotted line show the effect of a catalyst on this reactant?
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Answer
A catalyst would typically lower the energy barrier for the reaction, thus the graph reflecting this change would likely be A.
