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Sample FCQ-UNA Pre-Admisión Practice Questions

Try these sample questions to review concepts for the FCQ-UNA Pre-Admisión exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 30+ question experience with AI tutoring.

1Which of the following compounds possesses a permanent non-zero molecular dipole moment (is polar)?
A.Carbon dioxide (CO2)
B.Ammonia (NH3)
C.Boron trifluoride (BF3)
D.Carbon tetrachloride (CCl4)
Explanation: Ammonia (NH3) has a trigonal pyramidal molecular geometry resulting from three N-H bonds and one nitrogen lone pair. Because the dipole moments of the polar N-H bonds do not cancel out in this asymmetrical geometry, ammonia has a permanent molecular dipole moment.
2What is the systematic IUPAC name for the inorganic compound Fe2(SO4)3?
A.Iron(II) sulfate
B.Iron(II) sulfite
C.Iron(III) sulfate
D.Tri-iron disulfate
Explanation: In Fe2(SO4)3, the polyatomic sulfate anion has a -2 charge (SO4^2-). Three sulfate ions contribute a total charge of -6, requiring the two iron cations to balance with a +6 charge, meaning each iron cation has an oxidation state of +3 (iron(III)). Hence the systematic name is iron(III) sulfate.
3Which chlorine oxoacid contains chlorine in the +5 oxidation state?
A.Hypochlorous acid (HClO)
B.Chloric acid (HClO3)
C.Chlorous acid (HClO2)
D.Perchloric acid (HClO4)
Explanation: In HClO3, hydrogen is +1 and each oxygen is -2 (-6 total). To maintain electrical neutrality, the oxidation state of chlorine must be +5 (+1 + 5 - 6 = 0). Systematic nomenclature assigns the suffix '-ic' to the +5 chlorine oxoacid (chloric acid).
4What is the mass in grams of 0.750 moles of anhydrous copper(II) sulfate (CuSO4)? (Atomic masses: Cu = 63.55 g/mol, S = 32.06 g/mol, O = 16.00 g/mol)
A.95.5 g
B.159.6 g
C.142.1 g
D.119.7 g
Explanation: The molar mass of CuSO4 is 63.55 + 32.06 + 4(16.00) = 159.61 g/mol. Multiplying molar mass by moles gives: mass = 0.750 mol * 159.61 g/mol = 119.7 g.
5An unknown organic compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen by mass. What is its empirical formula? (Atomic masses: C = 12.01 g/mol, H = 1.01 g/mol, O = 16.00 g/mol)
A.CH2O
B.C2H4O
C.CHO2
D.C3H6O2
Explanation: Assuming a 100 g sample: moles of C = 40.0 / 12.01 = 3.33 mol; moles of H = 6.7 / 1.01 = 6.63 mol; moles of O = 53.3 / 16.00 = 3.33 mol. Dividing by the smallest value (3.33) yields a molar ratio of C : H : O = 1.00 : 1.99 : 1.00, giving the empirical formula CH2O.
6Calcium carbonate decomposes thermally according to: CaCO3(s) -> CaO(s) + CO2(g). When 25.0 g of CaCO3 is heated, a student collects 11.2 g of solid CaO. What is the percent yield of the reaction? (Molar masses: CaCO3 = 100.1 g/mol, CaO = 56.1 g/mol)
A.44.8%
B.80.0%
C.74.7%
D.89.6%
Explanation: Moles of CaCO3 = 25.0 g / 100.1 g/mol = 0.2498 mol. In a 1:1 reaction, the theoretical yield of CaO is 0.2498 mol * 56.1 g/mol = 14.01 g. The percent yield is (actual yield / theoretical yield) * 100% = (11.2 g / 14.01 g) * 100% = 80.0%.
7What mass of carbon dioxide (CO2) is generated by the complete combustion of 4.41 g of propane gas (C3H8)? (Molar masses: C3H8 = 44.1 g/mol, CO2 = 44.0 g/mol)
A.13.2 g
B.4.40 g
C.8.80 g
D.17.6 g
Explanation: The balanced combustion equation is C3H8 + 5 O2 -> 3 CO2 + 4 H2O. Moles of propane burned = 4.41 g / 44.1 g/mol = 0.100 mol. According to the 1:3 stoichiometry, moles of CO2 formed = 3 * 0.100 mol = 0.300 mol. Mass of CO2 = 0.300 mol * 44.0 g/mol = 13.2 g.
8A laboratory analyst dissolves 9.81 g of pure sulfuric acid (H2SO4, molar mass 98.1 g/mol) in distilled water to prepare exactly 250 mL of aqueous solution. What is the molarity (M) of this solution?
A.0.100 M
B.0.250 M
C.0.800 M
D.0.400 M
Explanation: Moles of solute = 9.81 g / 98.1 g/mol = 0.100 mol. Volume of solution in liters = 250 mL / 1000 mL/L = 0.250 L. Molarity = moles / volume (L) = 0.100 mol / 0.250 L = 0.400 M.
9What is the complete factorization into linear binomials of the quadratic polynomial 2x^2 + 5x - 3?
A.(2x - 1)(x + 3)
B.(2x + 1)(x - 3)
C.(2x + 3)(x - 1)
D.(x + 1)(2x - 3)
Explanation: To factor 2x^2 + 5x - 3, we seek two numbers whose product is 2 * (-3) = -6 and whose sum is +5. These numbers are +6 and -1. Rewriting the middle term: 2x^2 + 6x - x - 3 = 2x(x + 3) - 1(x + 3) = (2x - 1)(x + 3).
10A rectangular sheet has area 120 cm² and its length is 7 cm greater than its width. What are its positive dimensions?
A.Width 5 cm; length 24 cm
B.Width 10 cm; length 12 cm
C.Width 8 cm; length 15 cm
D.Width 6 cm; length 20 cm
Explanation: Writing width as w gives w(w + 7) = 120, so (w + 15)(w − 8) = 0. The negative root is not a physical width. Thus width is 8 cm and length is 15 cm, satisfying both the area and difference conditions.

About the FCQ-UNA Pre-Admisión Exam

Independent practice for the basic Chemistry, Mathematics and Comunicación castellana (Comprensión lectora) topics of FCQ-UNA Pre-Admisión. Official papers are in Spanish with five-option MCQs. This is an English-language, four-option MCQ study adaptation, not an official translation or format simulation. Spanish reading material is preserved. This bank does not cover the complete later CPI, including its Physics material, and does not replace worked-response practice, required attendance, or CPI assessments.

Exam sponsor: Universidad Nacional de Asunción — Facultad de Ciencias Químicas. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Question count not published by the exam provider

Time Limit

Set by the examining tribunal and announced at the start

Passing Score

Pre-Admisión ranking for CPI places; current faculty notice states 300. Subsequent degree placement requires Chemistry at least 50/100 and combined-score ranking.

Exam / Certification Fees

Current amount not confirmed; eligible Arancel Cero exemption

Exam sponsor website

Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.

Official sources

  • How FCQ admission works and Ingreso 2027 · Source checked 2026-10-09Standalone basic Chemistry, Mathematics and Spanish reading papers; current page states 300 places. 2027 pre-registration: 7 September–5 October 2026; CPI: 16 November–22 January.
  • Current regulation — CSU 0418-00-2026 · Source checked 2026-10-0915 July 2026 regulation. Pre-Admisión uses basic/secondary common-plan knowledge. CPI Exact Sciences includes Mathematics and Physics; 60% attendance, partials 30+30 and final 40 points per subject; Chemistry minimum 50.
  • 2026 admission cycle · Source checked 2026-10-09

Our practice resources: topics covered

We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.

Official Pre-Admisión percentage not confirmed

Química

Selected basic atomic structure, bonding, formulas, moles, reactions and concentrations; equal practice allocation is not an official weighting.

Official Pre-Admisión percentage not confirmed

Matemática

Selected secondary-level algebra, equations, ratios, logarithms, exponentials and trigonometry.

Official Pre-Admisión percentage not confirmed

Comunicación castellana (Comprensión lectora)

Spanish reading and the vocabulary, connectors and grammar needed to interpret texts.

Preparing for the FCQ-UNA Pre-Admisión Exam

What You Need to Know

  • Passing score: Pre-Admisión ranking for CPI places; current faculty notice states 300. Subsequent degree placement requires Chemistry at least 50/100 and combined-score ranking.
  • Assessment: Question count not published by the exam provider
  • Time limit: Set by the examining tribunal and announced at the start
  • Exam / certification fees: Current amount not confirmed; eligible Arancel Cero exemption Official sources

Using Our Practice Resources

  • Work through all 30 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

FCQ-UNA Pre-Admisión: Suggested Study Strategy

1Start with basic and common secondary-plan material.
2Use mole and volume units consistently.
3Check logarithm domains before accepting roots.
4Identify what a Spanish passage supports and what it leaves untested.

Frequently Asked Questions

Does Pre-Admisión require a faculty course?

No. It is the directly sittable first stage. Successful ranked applicants proceed to the binding CPI. The current website states 300 places; the 2026 regulation lets the faculty set the number for each call.

What does the subsequent CPI require?

The published 2027 cycle has a ten-week CPI. It requires 60% attendance and assesses Chemistry and Exact Sciences (Mathematics and Physics). Each subject has two 30-point partials, which may be MCQ and/or worked-response assessments, and a 40-item MCQ final. No separate oral, laboratory, or case-study entrance test was identified.

Must I have graduated before Pre-Admisión registration?

The 2026 regulation's Pre-Admisión registration list requires identity and registration materials, not a completed school certificate. The secondary certificate and title requirements apply to subsequent enrollment. Check the current call before applying.