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Question 1
What is the ground-state electron configuration of the chromium atom (24_Cr)?
Correct Answer:
1s² 2s² 2p⁶ 3s² 3p⁶ 3d⁵ 4s¹ ([Ar] 3d⁵ 4s¹)
Question 2
Which of the following molecules has a non-polar (zero dipole moment) linear molecular geometry despite containing polar covalent bonds?
Correct Answer:
CO2 (Carbon dioxide)
Question 3
In the reaction 2NO(g) + O2(g) 2NO2(g) + Q (exothermic), which change will shift the chemical equilibrium toward the formation of more products (to the right)?
Correct Answer:
Increasing the pressure or decreasing the temperature
Question 4
What is the oxidation state of sulfur in sodium thiosulfate (Na2S2O3)?
Correct Answer:
+2
Question 5
What is the pH of a 0.005 M aqueous solution of barium hydroxide (Ba(OH)2), assuming complete electrolytic dissociation at 25°C?
Correct Answer:
12.0
Question 1
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About this Exam

Prepare with the Armenia Chemistry Unified Exam Practice Questions - Unified Entrance Examination - Chemistry (Քիմիա) Exam practice quiz. This question bank includes 100 questions covering solution, acid, mass, sodium, and aqueous. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Armenia Chemistry Unified Exam Practice Questions - Unified Entrance Examination - Chemistry (Քիմիա) Exam

This practice set contains 100 questions from the matching question bank and focuses on solution, acid, mass, sodium, and aqueous. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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