NEET Chemistry: Equilibrium — MCQ Test 8

Q6. Which of the following is a Lewis base?

Q7. For \( \ce{2A(g) <=> B(g) + C(g)} \), \( K_c = 0.0625 \) at 300 K. If 0.8 mol \( \ce{A} \) is placed in a 2 L vessel with 0.1 mol \( \ce{B} \), what is \( [\ce{C}] \) at equilibrium?

Q8. For the reaction \( \ce{2A(g) + 2B(g) <=> 3C(g)} \), \( K_c = 64 \) at 500 K. If 2 moles of \( \ce{A} \) and 2 moles of \( \ce{B} \) are placed in a 1 L vessel, what is \( [\ce{C}] \) at equilibrium?

Q9. A weak acid \( \ce{HX} \) (\( K_a = 3.2 \times 10^{-5} \)) is mixed with 0.04 M \( \ce{NaX} \) in a 2:1 volume ratio (acid:salt). If \( [\ce{HX}] = 0.06 \, \text{M} \) after mixing, what is the pH?

Q10. A weak base \( \ce{BOH} \) (\( K_b = 5.0 \times 10^{-6} \)) has a 0.1 M solution with \( \alpha = 0.00707 \). What is the pH?

NEET Chemistry — Equilibrium

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Medium

The \( K_a \) of \( \ce{CH3COOH} \) is \( 1.8 \times 10^{-5} \). What is the \( K_b \) of \( \ce{CH3COO-} \) at 298 K?

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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 Dissociation, Solution, Containing, Assuming, Complete, and Saturated.

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Preview of Questions in this Test

Q1. The \( K_a \) of \( \ce{CH3COOH} \) is \( 1.8 \times 10^{-5} \). What is the \( K_b \) of \( \ce{CH3COO-} \) at 298 K?

  • A. \( 1.8 \times 10^{-5} \)
  • B. \( 1.0 \times 10^{-14} \)
  • C. \( 9.0 \times 10^{-10} \)
  • D. \( 5.56 \times 10^{-10} \)

Q2. For \( \ce{A2(g) <=> 2A(g)} \), \( K_c = 0.09 \) at 300 K. If 0.2 mol \( \ce{A2} \) is in a 1 L vessel, what is the degree of dissociation?

  • A. 0.1
  • B. 0.5
  • C. 0.2
  • D. 0.3

Q3. What is the pH of a solution containing 0.01 M \( \ce{HCl} \) assuming complete dissociation?

  • A. 1
  • B. 2
  • C. 3
  • D. 4

Q4. In a saturated solution of a sparingly soluble salt \( \ce{MX2} \), the solubility is \( S \) mol/L. If \( K_{sp} = 4S^3 \), what is the relationship between \( \ce{M^{2+}} \) and \( \ce{X^-} \)?

  • A. \( [\ce{X^-}] = [\ce{M^{2+}}] \)
  • B. \( [\ce{X^-}] = 2[\ce{M^{2+}}] \)
  • C. \( [\ce{M^{2+}}] = 2[\ce{X^-}] \)
  • D. \( [\ce{X^-}] = 4[\ce{M^{2+}}] \)

Q5. For the reaction \( \ce{2A(g) + B(g) <=> 3C(g)} \), \( K_c = 64 \) at 300 K. If 2 moles of \( \ce{A} \) and 1 mole of \( \ce{B} \) are placed in a 2 L vessel, what is \( [\ce{C}] \) at equilibrium?

  • A. 0.72 M
  • B. 0.96 M
  • C. 0.48 M
  • D. 1.44 M

+ 5 more questions in the actual test

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