IB DP Chemistry Mock Exam SL Paper 1A Set 5 - 2025 Syllabus
IB DP Chemistry Mock Exam SL Paper 1A Set 5
Prepare for the IB DP Chemistry Exam with our comprehensive IB DP Chemistry Exam Mock Exam SL Paper 1A Set 5. Test your knowledge and understanding of key concepts with challenging questions covering all essential topics. Identify areas for improvement and boost your confidence for the real exam
Question
Why does benzene undergo substitution more readily than addition?
A. Benzene is unsaturated.
B. Addition could produce an alkane.
C. Resonance makes carbon–carbon bonds too strong to break.
D. A benzene molecule is planar.
▶️Answer/Explanation
Markscheme: C
A. \(1.0 \times 10^{-22}\)
B. \(2.0 \times 10^{-23}\) g
C. \(8.3 \times 10^{-24}\) g
D. \(1.2 \times 10^{-21}\) g
▶️Answer/Explanation
Markscheme: D
Question
20\(cm^3\) of gas A reacts with 20\(cm^3\) of gas B to produce 10\(cm^3\) of gas \(A_xB_y\) and 10\(cm_3\) of excess gas A. Correct values for subscripts x and y in the empirical formula of the product \(A_xB_y\) (g)?
▶️Answer/Explanation
Markscheme: D
Question
Which graph represents the relationship between the amount of gas, $\mathrm{n}$, and the absolute temperature, $\mathrm{T}$, with all other variables in the ideal gas equation, $P V=n R T$, held constant?
Answer/Explanation
Solution:B