AQA A-Level Chemistry Paper 1: Comprehensive Exam (Inorganic & Physical Chemistry)

AQA A-Level Chemistry Paper 1: 50 Practice
Questions with Answers (Inorganic & Physical
Chemistry)
Inorganic Chemistry

1. What is the electron configuration of a sodium ion (Na⁺)?

 A) 1s² 2s² 2p⁶ 3s²
 B) 1s² 2s² 2p⁶
 C) 1s² 2s² 2p⁶ 3s² 3p⁶
 D) 1s² 2s² 2p⁶ 3s¹

Correct Answer: B) 1s² 2s² 2p⁶

2. Which of the following is a property of transition metals?

 A) They have low melting points.
 B) They form coloured compounds.
 C) They do not conduct electricity.
 D) They are highly reactive with water.

Correct Answer: B) They form coloured compounds.

3. What is the oxidation state of chlorine in NaClO₃?

 A) +1
 B) +3
 C) +5
 D) +7

Correct Answer: C) +5

4. Which element in Period 3 has the highest first ionization energy?

 A) Sodium
 B) Magnesium
 C) Aluminum
 D) Argon

Correct Answer: D) Argon

5. Which of the following ions has the smallest ionic radius?

,  A) Na⁺
 B) Mg²⁺
 C) Al³⁺
 D) Si⁴⁺

Correct Answer: D) Si⁴⁺



Physical Chemistry

6. What is the ideal gas equation?

 A) PV = nRT
 B) P = V/nRT
 C) P = nRT/V
 D) PV = nR/T

Correct Answer: A) PV = nRT

7. Which of the following is a strong acid?

 A) H₂CO₃
 B) HNO₃
 C) CH₃COOH
 D) H₂SO₃

Correct Answer: B) HNO₃

8. What is the pH of a neutral solution at 25°C?

 A) 0
 B) 7
 C) 14
 D) 1

Correct Answer: B) 7

9. Which of the following is a characteristic of a catalyst?

 A) It is consumed in the reaction.
 B) It increases the activation energy.
 C) It lowers the activation energy.
 D) It shifts the equilibrium position.

Correct Answer: C) It lowers the activation energy.