Daily Practice Questions

6 questions across multiple subjects, with detailed explanations and study tips.

📝 Questions

🧪 AP Chemistry Hard
Which of the following bases would be the best choice for the titration?
  1. A. Al(OH) _{3}
  2. B. Na _{2} CO _{3}
  3. C. NH _{3}
  4. D. KOH ✓
Explanation: D —In any acid–base titration, it is always easier to use a strong base (and a strong acid). Potassium hydroxide, KOH, is the only strong base among the choices.
📖 SAT Reading & Writing Medium
Which quotation from the poem most effectively illustrates the claim?
  1. A. “While my hair was still cut straight across my forehead / I played about the front gate, pulling flowers.”
  2. B. “Lowering my head, I looked at the wall. / Called to, a thousand times, I never looked back.”
  3. C. “You went into far Ku-to-en, by the river of swirling eddies, / And you have been gone five months.”
  4. D. “If you are coming down through the narrows of the river, / Please let me know beforehand, / And I will come out to meet you.” ✓
Explanation: This option most directly shows that the narrator wishes to reunify with her departed husband, since she states that if he is coming, he should be sure to let her know ahead of time so that she can meet him. Choice (A) focuses on the narrator’s appearance and outdoor actions. Choice (B) would show that the narrator was not especially eager for a reunification. Choice (C) does not express emotion about missing the husband, but just states information about his journey.
📊 SAT Math Hard
2. If ( x , y ) is a solution to the system of equations above, what is the value of x + y ?
  1. A. −3
  2. B. −1 ✓
  3. C. 1
  4. D. 3
Explanation: Getting to the Answer: The coefficients are such that solving directly for x + y is cumbersome. Since substitution might create some awkward coefficients, use combination to solve. You can multiply the first equation by 3 and the second by 2 and add the equations to eliminate y :
🎯 GMAT Prep Medium
Which of the following numbers is prime?
  1. A. 0, 1, 15, 23, 33
  2. B. 0
  3. C. 1
  4. D. 15
  5. E. 23 ✓
Explanation: A prime number is defined as an integer greater than 1 with exactly two distinct positive divisors: 1 and itself. Eliminate 0 and 1 immediately, as they are not prime by definition. Check 15 and 33 for divisibility; both are composite since $15 = 3 \times 5$ and $33 = 3 \times 11$. Finally, test 23. It is not divisible by 2, 3, or 5, and since $\sqrt{23} < 5$, no other factors exist. Thus, 23 is the only prime in the set.
✍️ AP English Language Hard
Which of the following best characterizes the writer’s decision to undertake a long solo flight?
  1. A. The irony of flying solo in order to escape loneliness ✓
  2. B. The need to overcome fears of inadequacy
  3. C. A means to escape from routine
  4. D. An effort to assuage feelings of self-doubt about her capabilities
  5. E. An amorphous desire to make a name for herself
Explanation: For someone subscribing to the notion that abhorrence of loneliness is a common human frailty, it seems contradictory to set off alone on such a journey. But that’s just the point. Her flight is just the sort of enterprise that keeps loneliness at bay.
🧬 AP Biology Easy
Which of the following catalyzes the formation of peptide bonds during translation?
  1. A. RNA polymerase
  2. B. mRNA
  3. C. rRNA ✓
  4. D. tRNA
Explanation: Ribosomes are the molecular machines that synthesize proteins, and their catalytic core is composed of ribosomal RNA (rRNA), which directly facilitates peptide bond formation between amino acids. This process distinguishes translation from transcription, where RNA polymerase synthesizes RNA strands using DNA as a template. While mRNA provides the genetic code and tRNA delivers specific amino acids, neither acts as the enzyme; instead, rRNA performs the essential catalytic function required for protein synthesis.

💡 Study Tips

📖 Start with the hardest topic first

Your mental energy is highest at the beginning of a study session. Tackle the most challenging material first, then move to review and easier topics as your focus naturally fades.

🎯 Time yourself on practice tests

Practicing under timed conditions builds your pacing instincts for test day. If you consistently run out of time on a section, adjust your strategy: spend less time on hard questions and secure the ones you know.

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