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Exam Review

Key Facts: NMT Chemistry Exam

24

Official Tasks

UCEQA 2026 subject guidance

120 min

Shared Stage

UCEQA 2026 NMT structure

5/32

Raw Conversion Threshold

2026 admission rules, Appendix 5

NMT Chemistry: 24 official computer-based tasks, maximum 32 raw points. Stage 2: History of Ukraine and the selected elective share 120 minutes. Candidates allocate time within the stage; there is no fixed 60-minute subject limit. Independent English-language four-option MCQ study adaptation by OpenExamPrep. These selected-topic exercises are supplementary, not an official translation, an official-format simulation, or a substitute for the full range of official tasks.

Sample NMT Chemistry Practice Questions

Try these sample questions to review concepts for the NMT Chemistry exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 99+ question experience with AI tutoring.

1How many protons, neutrons, and electrons are present in a neutral atom of the chlorine-37 isotope ($_{17}^{37}\text{Cl}$)?
A.17 protons, 20 neutrons, and 17 electrons
B.17 protons, 37 neutrons, and 17 electrons
C.20 protons, 17 neutrons, and 20 electrons
D.17 protons, 17 neutrons, and 20 electrons
Explanation: For any neutral isotope $_Z^A\text{X}$, the atomic number $Z$ equals the number of protons and electrons (here $Z = 17$). The mass number $A$ equals protons plus neutrons ($A = 37$). Thus, the number of neutrons is $N = A - Z = 37 - 17 = 20$.
2What is the ground-state electron configuration of a neutral iron atom ($_{26}\text{Fe}$)?
A.$1s^2 2s^2 2p^6 3s^2 3p^6 3d^6 4s^2$
B.$1s^2 2s^2 2p^6 3s^2 3p^6 3d^8$
C.$1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 4p^6$
D.$1s^2 2s^2 2p^6 3s^2 3p^6 3d^7 4s^1$
Explanation: Neutral iron has 26 electrons. Its ground-state configuration is an argon core followed by $3d^6 4s^2$, accounting for all 26 electrons.
3According to Hund's rule, how many unpaired electrons are present in the ground state of an isolated neutral phosphorus atom ($_{15}\text{P}$)?
A.3
B.1
C.0
D.5
Explanation: Phosphorus has a neon core followed by $3s^2 3p^3$. Hund's rule places the three p electrons in separate orbitals with parallel spins, leaving three unpaired electrons.
4How do atomic radii generally change across the Periodic Table from left to right along a Period, and from top to bottom within a Group?
A.Decreases across a period; increases down a group
B.Increases across a period; decreases down a group
C.Increases across a period; increases down a group
D.Decreases across a period; decreases down a group
Explanation: Across a period from left to right, the nuclear charge ($Z$) increases while electrons are added to the same principal energy level; the increasing effective nuclear charge pulls electron shells closer to the nucleus, decreasing atomic radius. Down a group, each successive period adds an entire new electron shell, increasing atomic radius.
5Which chemical element has the highest Pauling electronegativity in the entire Periodic Table?
A.Fluorine
B.Oxygen
C.Chlorine
D.Francium
Explanation: Fluorine ($F$) is the most electronegative element, assigned a value of 3.98 (approximately 4.0) on the Pauling scale. Its small atomic radius and high effective nuclear charge give it the strongest tendency to attract shared bonding electron pairs.
6Which of the following pure substances features non-polar covalent chemical bonds in its molecular structure?
A.Nitrogen gas ($N_2$)
B.Hydrogen chloride ($HCl$)
C.Water ($H_2O$)
D.Sodium chloride ($NaCl$)
Explanation: Non-polar covalent bonds form between atoms of identical electronegativity (difference $\Delta \chi = 0$), where the bonding electron pair is shared equally. In diatomic nitrogen ($N_2$), the two identical nitrogen atoms share three electron pairs symmetrically ($N \equiv N$).
7In the formation of an ammonium cation ($NH_4^+$) from ammonia ($NH_3$) and a proton ($H^+$), which bonding mechanism is responsible for forming the fourth $N-H$ bond?
A.Donor-acceptor (coordinate covalent) bond, where nitrogen donates a lone pair to the vacant $1s$ orbital of $H^+$
B.Ionic bond formed by transfer of an electron from hydrogen to nitrogen
C.Hydrogen bond between adjacent ammonia molecules
D.Metallic bond involving delocalized valence electrons
Explanation: Ammonia's nitrogen supplies a lone electron pair to bond with a proton. This describes coordinate covalent bond formation; once ammonium forms, its four N–H bonds are equivalent. An atomic electron configuration is not a hybridization label.
8Which of the following substances possesses an atomic (covalent network) crystal lattice, accounting for its extremely high melting point and hardness?
A.Silicon dioxide (quartz, $SiO_2$)
B.Carbon dioxide (dry ice, $CO_2$)
C.Sodium chloride ($NaCl$)
D.Ice ($H_2O$)
Explanation: Silicon dioxide ($SiO_2$) forms a continuous three-dimensional covalent network (atomic crystal lattice) where every silicon atom is covalently bonded to four oxygen atoms in a tetrahedral arrangement, and each oxygen bridges two silicons. Breaking this continuous network requires immense energy, giving it a very high melting point (~1700°C) and hardness.
9What is the oxidation state of sulfur in potassium persulfate ($K_2S_2O_8$)?
A.+6
B.+7
C.+4
D.+8
Explanation: Potassium persulfate (peroxydisulfate) contains a peroxo bridge ($-O-O-$) with two oxygen atoms in the -1 oxidation state, while the other six oxygens have the standard -2 oxidation state. The sum of oxidation states is: $2(+1) + 2(S) + 6(-2) + 2(-1) = 0 \implies 2 + 2S - 12 - 2 = 0 \implies 2S = 12 \implies S = +6$. Sulfur cannot exceed its group valence of +6.
10In the redox reaction $2KMnO_4 + 16HCl \rightarrow 2KCl + 2MnCl_2 + 5Cl_2\uparrow + 8H_2O$, which species acts as the reducing agent?
A.Chloride ions in $HCl$ ($Cl^-$)
B.Permanganate ions, with manganese in oxidation state +7
C.Potassium ions ($K^+$)
D.Hydrogen ions ($H^+$)
Explanation: In this reaction, chlorine changes oxidation state from -1 in $HCl$ to 0 in elemental $Cl_2$, losing electrons ($2Cl^- - 2e^- \rightarrow Cl_2^0$). The substance that donates electrons and is oxidized is the reducing agent ($HCl$). Manganese is reduced from +7 to +2, acting as the oxidizing agent.

About the NMT Chemistry Exam

NMT Chemistry is a selectable fourth subject of Ukraine’s National Multi-Subject Test for higher-education admission. Independent English-language four-option MCQ study adaptation by OpenExamPrep. These selected-topic exercises are supplementary, not an official translation, an official-format simulation, or a substitute for the full range of official tasks.

Exam sponsor: Ukrainian Center for Educational Quality Assessment (УЦОЯО / UCEQA). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.

Assessment

Computer-based subject component of Національний мультипредметний тест (НМТ / NMT). 18 single-choice tasks, 2 matching tasks, and 4 short numerical-answer tasks.

Time Limit

Stage 2: History of Ukraine and the selected elective share 120 minutes. Candidates allocate time within the stage; there is no fixed 60-minute subject limit.

Passing Score

5 of 32 raw points is the minimum for a converted 100–200 result in 2026; it does not guarantee admission.

Exam / Certification Fees

Free participation; travel costs separate

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.

No percentage stated in the cited subject guidance

General chemistry

Atomic structure, bonding, solutions, reactions, and equilibrium.

No percentage stated in the cited subject guidance

Inorganic chemistry

Elements, inorganic compounds, and their reactions.

No percentage stated in the cited subject guidance

Organic chemistry

Hydrocarbons, functional groups, and organic reactions.

No percentage stated in the cited subject guidance

Chemical calculations

Amounts, composition, equations, and quantitative problems.

Preparing for the NMT Chemistry Exam

What You Need to Know

  • Passing score: 5 of 32 raw points is the minimum for a converted 100–200 result in 2026; it does not guarantee admission.
  • Assessment: Computer-based subject component of Національний мультипредметний тест (НМТ / NMT). 18 single-choice tasks, 2 matching tasks, and 4 short numerical-answer tasks.
  • Time limit: Stage 2: History of Ukraine and the selected elective share 120 minutes. Candidates allocate time within the stage; there is no fixed 60-minute subject limit.
  • Exam / certification fees: Free participation; travel costs separate Official sources

Using Our Practice Resources

  • Work through all 99 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

NMT Chemistry: Suggested Study Strategy

1Balance equations before using mole ratios.
2Separate oxidation states from ionic charges.
3Check limiting reactants and units in every calculation.

Frequently Asked Questions

What is the official assessment format?

The computer-based subject test contains 24 tasks: 18 single-choice tasks, 2 matching tasks, and 4 short numerical-answer tasks. It carries up to 32 raw points. There is no oral, practical, coursework, essay, or case-study submission component within this NMT subject test.

How much time is available?

Stage 2: History of Ukraine and the selected elective share 120 minutes. Candidates allocate time within the stage; there is no fixed 60-minute subject limit. The full NMT has two 120-minute stages separated by a 20-minute break.

Which languages are used officially?

Ukrainian, with Crimean Tatar, Polish, Romanian, and Hungarian translations available. Independent English-language four-option MCQ study adaptation by OpenExamPrep. These selected-topic exercises are supplementary, not an official translation, an official-format simulation, or a substitute for the full range of official tasks.

What score is needed?

5 of 32 raw points is the minimum for a converted 100–200 result in 2026; it does not guarantee admission.

Who can participate, and is there an exam fee?

Current-year students completing full general secondary education and graduates of previous years can register under the official rules. Participation is free; travel or accommodation costs are separate. Testing takes place at assigned centers in Ukraine or abroad, rather than remotely at home.