Free Practice Questions for Georgia Unified Chemistry

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Key Facts: Georgia Unified Chemistry Exam

Maximum Score

NAEC Official

180 min

Exam Duration

NAEC Guidelines

> 15.75

Pass Cutoff Points

25% Threshold

10 GEL

Registration Fee

NAEC Fee Schedule

Georgia's Unified National Examination in Chemistry (ერთიანი ეროვნული გამოცდა ქიმიაში), administered by NAEC, tests atomic theory, physical chemistry, inorganic systems, and organic reaction mechanisms for university entrance with a 63-point maximum and a 3-hour duration for 10 GEL. The official paper is sat in Georgian, with a Russian version available to eligible candidates; this bank is an English-language MCQ study adaptation.

Sample Georgia Unified Chemistry Practice Questions

Try these sample questions to review concepts for the Georgia Unified Chemistry exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1An atom of the chromium isotope ⁵²Cr has an atomic number of 24. How many protons, neutrons, and electrons are present in a neutral atom of this isotope?

A.24 protons, 24 neutrons, and 28 electrons

B.24 protons, 28 neutrons, and 24 electrons

C.28 protons, 24 neutrons, and 24 electrons

D.24 protons, 52 neutrons, and 24 electrons

Explanation: The atomic number Z = 24 specifies that the neutral chromium atom has 24 protons and 24 electrons. The mass number A = 52 gives the total number of nucleons, so the number of neutrons is A - Z = 52 - 24 = 28.

2What is the ground-state electron configuration of the valence shell of a neutral phosphorus atom (Z = 15)?

A.2s² 2p³

B.3s² 3p¹

C.3s² 3p³

D.3s¹ 3p⁴

Explanation: Phosphorus has 15 electrons with the complete electron configuration 1s² 2s² 2p⁶ 3s² 3p³. Its valence shell corresponds to the principal quantum number n = 3, which contains five electrons in the subshells 3s² 3p³.

3What is the ground-state electron configuration of the iron(III) cation, Fe³⁺ (atomic number of Fe = 26)?

A.[Ar] 3d⁵

B.[Ar] 4s² 3d³

C.[Ar] 4s¹ 3d⁴

D.[Ar] 3d⁶

Explanation: Neutral iron has the ground-state configuration [Ar] 4s² 3d⁶. Transition metals lose electrons from the outermost 4s orbital first during ionization, so forming Fe³⁺ removes both 4s electrons and one 3d electron, yielding the half-filled, stable [Ar] 3d⁵ configuration.

4Which set of four quantum numbers (n, l, ml, ms) correctly describes the outermost valence electron of a potassium atom (Z = 19) in its ground state?

A.n = 3, l = 0, ml = 0, ms = +1/2

B.n = 4, l = 1, ml = 0, ms = +1/2

C.n = 3, l = 2, ml = 0, ms = +1/2

D.n = 4, l = 0, ml = 0, ms = +1/2

Explanation: Potassium (Z = 19) has the configuration [Ar] 4s¹. The valence electron occupies the 4s orbital, which has principal quantum number n = 4 and orbital angular momentum quantum number l = 0. For l = 0, the magnetic quantum number ml must be 0, and the spin quantum number ms can be +1/2.

5How does the atomic radius vary across Period 3 of the periodic table from sodium (Na) to chlorine (Cl), and what is the primary cause?

A.Increases, because additional electron shells are being added

B.Decreases, because effective nuclear charge increases across the period

C.Remains constant, because all valence electrons reside in the n = 3 shell

D.Increases, because electron-electron repulsions expand the outer orbital

Explanation: Moving from left to right across Period 3, protons are added to the nucleus while electrons enter the same valence energy level (n = 3). The core electron shielding remains relatively constant, causing the effective nuclear charge (Zeff) to increase, which draws the valence electron cloud closer to the nucleus and decreases the atomic radius.

6Why is the first ionization energy of beryllium (Be, Z = 4) higher than that of boron (B, Z = 5), despite boron having a higher nuclear charge?

A.Boron's outermost electron occupies a higher-energy 2p orbital that is shielded by the filled 2s subshell

B.Beryllium has a completely filled 2p subshell providing enhanced electronic stability

C.Boron has a significantly larger nuclear charge that destabilizes its valence electrons

D.Beryllium has a higher electronegativity than boron, preventing electron loss

Explanation: Beryllium has the electronic configuration 1s² 2s² with a completely filled, stable 2s subshell. Boron has the configuration 1s² 2s² 2p¹; its single 2p electron is at a higher energy level and is shielded from the nucleus by both the 1s and 2s electrons, making it easier to remove.

7Naturally occurring chlorine consists of two stable isotopes: ³⁵Cl (isotopic mass = 34.97 u, natural abundance = 75.78%) and ³⁷Cl (isotopic mass = 36.97 u, natural abundance = 24.22%). What is the standard atomic mass of chlorine?

A.35.97 u

B.36.45 u

C.35.45 u

D.35.00 u

Explanation: The average atomic mass is calculated by taking the weighted sum of the isotopic masses: (0.7578 × 34.97 u) + (0.2422 × 36.97 u) = 26.500 u + 8.954 u = 35.45 u.

8Which of the following compounds contains both ionic and polar covalent bonds in its solid state?

A.Calcium chloride (CaCl₂)

B.Methane (CH₄)

C.Potassium chloride (KCl)

D.Sodium sulfate (Na₂SO₄)

Explanation: In sodium sulfate (Na₂SO₄), electrostatic ionic attractions exist between the sodium cations (Na⁺) and the polyatomic sulfate anions (SO₄²⁻). Within the sulfate polyatomic anion itself, the sulfur and oxygen atoms are held together by polar covalent bonds.

9How do ammonia (NH₃) and boron trifluoride (BF₃) compare in molecular geometry and overall molecular dipole moment?

A.Both molecules are planar and nonpolar

B.NH₃ is trigonal pyramidal and polar, while BF₃ is trigonal planar and nonpolar

C.NH₃ is tetrahedral and nonpolar, while BF₃ is trigonal pyramidal and polar

D.Both molecules are trigonal pyramidal and polar

Explanation: In NH₃, nitrogen has three single bonds and one lone pair (AX₃E), giving a trigonal pyramidal geometry where individual N–H bond dipoles do not cancel, producing a net dipole moment (polar). In BF₃, boron has three bonding pairs and zero lone pairs (AX₃), giving a symmetric trigonal planar geometry where the three B–F bond dipoles cancel completely, resulting in a nonpolar molecule.

10What is the hybridization of the central sulfur atom in sulfur hexafluoride (SF₆) and its corresponding molecular geometry?

A.sp³d² hybridization with an octahedral molecular geometry

B.sp³d hybridization with a trigonal bipyramidal geometry

C.sp³ hybridization with a tetrahedral geometry

D.dsp² hybridization with a square planar geometry

Explanation: In SF₆, the central sulfur atom forms six single covalent bonds with six fluorine atoms and has no non-bonding lone pairs. This arrangement corresponds to a steric number of 6, which requires six hybrid orbitals formed by sp³d² hybridization, resulting in an octahedral molecular geometry with 90° bond angles.

About the Georgia Unified Chemistry Exam

The Unified National Examination in Chemistry (ერთიანი ეროვნული გამოცდა ქიმიაში) is Georgia's standardized national entrance examination administered by NAEC for admission to undergraduate programs in medicine, dentistry, pharmacy, chemistry, chemical engineering, biology, and agricultural sciences. The curriculum encompasses atomic structure, periodicity, chemical kinetics, thermodynamic principles, chemical equilibrium, aqueous solutions and pH, redox reactions, chemistry of the elements, and comprehensive organic chemistry.

Exam sponsor: National Assessment and Examinations Center (NAEC) of Georgia. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Single written paper of 180 minutes duration covering general chemistry, chemical reactions, inorganic nonmetals and metals, and organic functional groups.

Time Limit

180 minutes (3 hours)

Passing Score

Candidates must exceed 25% of the 63 maximum points (greater than 15.75 points) to clear the minimum competence threshold. Admission to medicine, pharmacy, chemistry, and biotechnology faculties is determined competitively based on scaled scores.

Exam / Certification Fees

10 GEL

Exam sponsor website

Reported exam pass rate: Competitive; clearance threshold is >25% of points, with medical and high-demand faculties setting competitive scaled ranking cutoffs.. Top-tier faculties and 100%, 70%, and 50% state grants require high competitive percentile scores across all tested subjects. This describes exam candidates, not OpenExamPrep users or results from using our resources. Exam sponsor website

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

Official sources

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.

25%

General Chemistry & Atomic Structure

Orbital theory, quantum numbers, periodic trends, ionic and covalent bonding, intermolecular forces, gas laws, and stoichiometric mole relations.

25%

Physical Chemistry & Chemical Reactions

Kinetics, activation energy, equilibrium constants, Le Chatelier shifts, thermochemical equations, solubility, aqueous pH, and redox balancing.

25%

Inorganic Chemistry

Systematic properties of non-metals (halogens, chalcogens, pnictogens, carbon family) and metals, extraction, amphoterism, and qualitative ion tests.

25%

Organic Chemistry

Alkanes, alkenes, alkynes, aromatics, alcohols, carbonyls, carboxylic acids, esters, amines, carbohydrates, amino acids, and reaction calculations.

Preparing for the Georgia Unified Chemistry Exam

What You Need to Know

Passing score: Candidates must exceed 25% of the 63 maximum points (greater than 15.75 points) to clear the minimum competence threshold. Admission to medicine, pharmacy, chemistry, and biotechnology faculties is determined competitively based on scaled scores.
Assessment: Single written paper of 180 minutes duration covering general chemistry, chemical reactions, inorganic nonmetals and metals, and organic functional groups.
Time limit: 180 minutes (3 hours)
Exam / certification fees: 10 GEL Official sources

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Georgia Unified Chemistry: Suggested Study Strategy

1Practice calculating stoichiometric quantities, limiting reactants, and percentage yields with exact atomic masses (H=1, C=12, N=14, O=16, Na=23, S=32, Cl=35.5, etc.).

2Master the half-reaction and oxidation-number methods for balancing complex redox reactions in acidic and basic solutions.

3Review organic conversion pathways thoroughly, paying close attention to reaction conditions such as catalytic hydrogenation, acid-catalyzed hydration, and Markovnikov addition.

Frequently Asked Questions

What is the format of the Unified National Chemistry Exam in Georgia?

The examination is a 3-hour (180-minute) paper totaling 63 points, consisting of multiple-choice questions, matching tasks, equation balancing (including redox oxidation numbers), reaction chains, and multi-step stoichiometric calculation problems.

What is the minimum passing score for NAEC Chemistry?

Candidates must surpass the competence threshold of 25% of the total maximum points (over 15.75 points, meaning 16 points or higher) to be eligible for university admission and state grant rankings.

In what languages is the official examination administered?

NAEC sets this paper in Georgian. Eligible candidates, principally those whose general education was obtained in an occupied territory, may apply to NAEC in advance to sit history, mathematics, chemistry, geography, physics, biology, fine and applied arts, and civic education in Russian. Armenian and Azerbaijani versions exist for the General Skills test only, not for this subject. This practice bank is an English-language MCQ study adaptation and is not an official NAEC translation.

Which university programs require the Unified Chemistry Exam?

Chemistry is either mandatory or an optional elective for admission to faculties of medicine, stomatology (dentistry), pharmacy, veterinary medicine, chemistry, chemical biology, agronomy, and related STEM disciplines.

Free Practice Questions for Georgia Unified Chemistry

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