NEET Chemistry: Equilibrium — MCQ Test 3

Q6. For \( \ce{H2(g) + I2(g) <=> 2HI(g)} \), \( K_c = 50 \) at 700 K. If 0.2 mol \( \ce{H2} \) and 0.3 mol \( \ce{I2} \) are in a 1 L vessel, what is \( [\ce{HI}] \) at equilibrium?

Q7. In \( \ce{2A(g) <=> B(g) + C(g)} \), \( K_c = 0.01 \) and \( [\ce{A}] = 0.2 \, \text{M} \), \( [\ce{B}] = 0.02 \, \text{M} \), \( [\ce{C}] = 0.02 \, \text{M} \) at equilibrium. What happens if \( \ce{B} \) is removed?

Q8. In the equilibrium \( \ce{2XY(g) <=> X2(g) + Y2(g)} \), decreasing the volume shifts the equilibrium in which direction?

Q9. The \( K_b \) of \( \ce{NH3} \) is \( 1.8 \times 10^{-5} \). What is the \( K_a \) of \( \ce{NH4+} \)?

Q10. For the reaction \( \ce{2SO2(g) + O2(g) <=> 2SO3(g)} \), if the initial moles of \( \ce{SO2} \) and \( \ce{O2} \) are 2 and 1 respectively in a 1 L vessel, and at equilibrium 1 mole of \( \ce{SO3} \) is formed, what is \( K_c \)?

NEET Chemistry — Equilibrium

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For \( \ce{A(g) + 2B(g) <=> 2C(g)} \), \( K_p = 1 \) at 400 K. If \( P_{\ce{A}} = 0.5 \, \text{atm} \), \( P_{\ce{B}} = 1 \, \text{atm} \) initially, what is \( P_{\ce{C}} \) at equilibrium?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Chemistry preparation, focusing specifically on the chapter Equilibrium. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Initially, Equilibrium, Pressures, Pressure, Solution, and Saturated.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. For \( \ce{A(g) + 2B(g) <=> 2C(g)} \), \( K_p = 1 \) at 400 K. If \( P_{\ce{A}} = 0.5 \, \text{atm} \), \( P_{\ce{B}} = 1 \, \text{atm} \) initially, what is \( P_{\ce{C}} \) at equilibrium?

  • A. 1.0 atm
  • B. 0.25 atm
  • C. 0.5 atm
  • D. 0.75 atm

Q2. For \( \ce{2SO2(g) + O2(g) <=> 2SO3(g)} \), \( K_p = 100 \) at 800 K. If initial pressures are \( P_{\ce{SO2}} = 1 \, \text{atm} \), \( P_{\ce{O2}} = 0.5 \, \text{atm} \), what is \( P_{\ce{SO3}} \) at equilibrium?

  • A. 1.0 atm
  • B. 0.9 atm
  • C. 0.45 atm
  • D. 1.8 atm

Q3. For \( \ce{N2O4(g) <=> 2NO2(g)} \), \( K_p = 0.16 \) at 298 K. If the initial pressure of \( \ce{N2O4} \) is 2 atm in a closed vessel, what is the total pressure at equilibrium (\( R = 0.0831 \, \text{bar L/mol K} \))?

  • A. 2.0 atm
  • B. 2.27 atm
  • C. 2.54 atm
  • D. 3.0 atm

Q4. For \( \ce{BaF2(s) <=> Ba^{2+}(aq) + 2F-(aq)} \), \( K_{sp} = 1.7 \times 10^{-6} \). In a 0.01 M \( \ce{NaF} \) solution, what is \( [\ce{Ba^{2+}}] \) in a saturated solution?

  • A. \( 1.7 \times 10^{-6} \)
  • B. \( 1.7 \times 10^{-2} \)
  • C. \( 4.25 \times 10^{-3} \)
  • D. \( 8.5 \times 10^{-4} \)

Q5. The equilibrium constant \( K_p \) for \( \ce{N2O4(g) <=> 2NO2(g)} \) is 0.98 at 298 K. What is \( K_c \) at this temperature (\( R = 0.0831 \, \text{bar L/mol K} \))?

  • A. 0.98
  • B. 24.76
  • C. 0.04
  • D. 0.02

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