100+ Free EGE Chemistry Practice Questions

Pass your Unified State Exam (EGE) in Chemistry (ЕГЭ по химии) exam on the first try — instant access, no signup required.

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Which type of crystal lattice does solid carbon dioxide ('dry ice') have?

Atomic (covalent network)

Molecular

Metallic

Ionic

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Key Facts: EGE Chemistry Exam

The EGE Chemistry is a 210-minute paper exam of 34 tasks (max 56 primary points, scaled to 100); you need 36 test points to pass and 80+ for competitive medical programs.

Sample EGE Chemistry Practice Questions

Try these sample questions to test your EGE Chemistry exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1How many protons, neutrons, and electrons are present in a neutral atom of the isotope ³²S (sulfur, atomic number 16)?

A.16 protons, 16 neutrons, 16 electrons

B.16 protons, 32 neutrons, 16 electrons

C.32 protons, 16 neutrons, 32 electrons

D.16 protons, 16 neutrons, 32 electrons

Explanation: The atomic number (16) equals the number of protons and, in a neutral atom, the number of electrons. The mass number (32) is protons plus neutrons, so neutrons = 32 − 16 = 16.

2What is the ground-state electron configuration of the chromium atom (Cr, Z = 24)?

A.1s²2s²2p⁶3s²3p⁶3d⁴4s²

B.1s²2s²2p⁶3s²3p⁶3d⁵4s¹

C.1s²2s²2p⁶3s²3p⁶3d⁶

D.1s²2s²2p⁶3s²3p⁶4s²4p⁴

Explanation: Chromium shows an anomalous configuration: one 4s electron is promoted to 3d, giving the more stable half-filled 3d⁵4s¹ arrangement rather than 3d⁴4s². This is a standard exception tested on the EGE.

3According to the periodic law of D. I. Mendeleev, properties of elements are a periodic function of which quantity?

A.The relative atomic mass

B.The charge of the atomic nucleus (atomic number)

C.The number of energy levels

D.The density of the simple substance

Explanation: The modern statement of the periodic law holds that the properties of elements and their compounds are periodic functions of the charge of the atomic nucleus (the atomic number Z), which determines the electron configuration.

4In which sequence does the electronegativity of the elements increase?

A.F, O, N, C

B.C, N, O, F

C.Na, Mg, Al, Si

D.I, Br, Cl, F arranged as F, Cl, Br, I

Explanation: Electronegativity increases across a period from left to right. For period-2 elements C, N, O, F the values rise in that order, with fluorine being the most electronegative element.

5What is the oxidation state of nitrogen in the ammonium ion NH₄⁺?

A.+3

B.−3

C.+5

D.−1

Explanation: Each hydrogen in NH₄⁺ is +1, contributing +4 total. Since the overall charge is +1, nitrogen must be −3 so that (−3) + (+4) = +1.

6Which compound contains an ionic chemical bond?

A.CO₂

B.Cl₂

C.NaF

D.CH₄

Explanation: Sodium fluoride (NaF) forms between a metal (Na) and a non-metal (F) with a large electronegativity difference, producing Na⁺ and F⁻ ions held by electrostatic attraction — an ionic bond.

7In which molecule is there a non-polar covalent bond?

A.HCl

B.NH₃

C.H₂O

D.N₂

Explanation: N₂ consists of two identical nitrogen atoms with equal electronegativity, so the shared electron pairs are distributed symmetrically — a non-polar covalent (triple) bond.

8Which type of crystal lattice does solid carbon dioxide ('dry ice') have?

A.Molecular

B.Ionic

C.Atomic (covalent network)

D.Metallic

Explanation: Solid CO₂ consists of discrete CO₂ molecules held together by weak intermolecular forces — a molecular crystal lattice, which explains its low melting point and sublimation.

9Atoms of which element have 3 electrons in the outer (valence) energy level in the ground state?

A.Boron (B)

B.Carbon (C)

C.Nitrogen (N)

D.Beryllium (Be)

Explanation: Boron (Z = 5) has the configuration 1s²2s²2p¹, giving 2 + 1 = 3 electrons in the outer (second) energy level, consistent with its group 13 (IIIA) position.

10In which series do the atomic radii of the elements decrease?

A.Li, Na, K, Rb

B.F, Cl, Br, I

C.Na, Mg, Al, Si

D.C, Si, Ge, Sn

Explanation: Across a period (Na→Si) the nuclear charge increases while electrons enter the same energy level, so the radius decreases. Down a group, radius increases.

About the EGE Chemistry Exam

The EGE in Chemistry (ЕГЭ по химии) is an elective Unified State Exam taken by Russian school-leavers applying to medical, chemistry, biology, pharmacy, and related university programs. The exam contains 34 tasks split into two parts: Part 1 (tasks 1-28) requires short answers worth 1-2 primary points each, and Part 2 (tasks 29-34) requires full written solutions including reaction equations, redox balancing, and calculation problems worth 2-5 points each. The maximum primary score is 56, converted to a 100-point test scale. Candidates may use a periodic table, a solubility table, the electrochemical activity series of metals, and a non-programmable calculator. The exam covers theoretical foundations, inorganic chemistry, organic chemistry, and physical chemistry with calculations.

Questions

100 scored questions

Time Limit

3 hours 30 minutes (210 minutes)

Passing Score

Minimum 36 test points out of 100 (equivalent to 11 of 56 primary points) to pass

Exam Fee

Free for current-year graduates; the Russian EGE has no exam fee. (Rosobrnadzor (content developed by FIPI))

EGE Chemistry Exam Content Outline

25%

Theoretical Foundations of Chemistry

Atomic structure, periodic law and Mendeleev's table, electronegativity, chemical bonding, oxidation states, and reaction classification.

28%

Inorganic Chemistry

Oxides, acids, bases and salts, properties of metals and non-metals, hydrolysis of salts, and qualitative analysis of ions.

27%

Organic Chemistry

Hydrocarbons, alcohols, aldehydes, carboxylic acids, esters, amines, amino acids, carbohydrates, isomerism, and genetic relationships.

20%

Methods of Cognition and Calculations

Redox reactions, electrolysis, reaction rate, chemical equilibrium, solutions, experimental methods, and stoichiometric calculations.

How to Pass the EGE Chemistry Exam

What You Need to Know

Passing score: Minimum 36 test points out of 100 (equivalent to 11 of 56 primary points) to pass
Exam length: 100 questions
Time limit: 3 hours 30 minutes (210 minutes)
Exam fee: Free for current-year graduates; the Russian EGE has no exam fee.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

EGE Chemistry Study Tips from Top Performers

1Master oxidation-state rules early: they underpin redox balancing in tasks 29-30, which carry significant Part 2 points.

2Drill the qualitative tests (bromine water, Tollens' reagent, FeCl3 for phenol, BaCl2 for sulfate) since they recur every year.

3Practise stoichiometry calculations with molar volume (22.4 L/mol) and mass-fraction problems until they are automatic for tasks 28, 33, and 34.

4Learn the genetic relationships between organic classes so you can write full conversion chains in the Part 2 organic problem.

5Use the allowed tables (periodic table, solubility table, activity series) during every practice session so you rely on them efficiently in the real exam.

Frequently Asked Questions

What is the minimum passing score for EGE Chemistry in 2026?

You need at least 36 test points out of 100, which corresponds to 11 primary points out of a maximum of 56. Chemistry is an elective subject, so it is not required to receive the school certificate, but universities set much higher cut-offs.

How long is the EGE Chemistry exam?

The exam lasts 3 hours 30 minutes (210 minutes). The same duration applies to Russian language, history, and social studies.

How many tasks are on the EGE Chemistry exam?

There are 34 tasks. Part 1 has 28 short-answer tasks (numbers 1-28) and Part 2 has 6 extended-answer tasks (numbers 29-34). The maximum primary score is 56 points.

What materials are allowed during the EGE Chemistry exam?

Candidates may use the periodic table of D. I. Mendeleev, a solubility table for salts/acids/bases, the electrochemical activity series of metals, and a non-programmable calculator. Phones and programmable devices are prohibited.

Did the EGE Chemistry exam change for 2026?

According to the official FIPI specifications, there are no structural changes to the chemistry exam for 2026; the structure and content remained the same as the previous year.