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MHT-CET Ionic Equilibria — practice questions

Explore 77 free Ionic Equilibria questions in MHT-CET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Ionic Equilibria questions and exercises with answers

Showing questions 1–30 of 77.

What is the equilibrium between ions and unionized molecules in solution called?Read the answer and worked solution →Which kind of electrolyte ionizes completely or almost completely in dilute aqueous solution?Read the answer and worked solution →Which one of these is a weak base?Read the answer and worked solution →The degree of dissociation of an electrolyte is the fraction of the total moles thatRead the answer and worked solution →An electrolyte of concentration c has degree of dissociation alpha. Each ion's concentration isRead the answer and worked solution →Which acid is present in tamarind paste?Read the answer and worked solution →Vinegar owes its sourness mainly to which acid?Read the answer and worked solution →According to Arrhenius, an acid in water gives which ion?Read the answer and worked solution →Arrhenius theory fails to explain the basic nature of which compound?Read the answer and worked solution →A Bronsted-Lowry base is a substance thatRead the answer and worked solution →What is the conjugate base of the acid HCl in water?Read the answer and worked solution →The conjugate acid of the base NH3 isRead the answer and worked solution →The conjugate base of H2O (acting as acid) isRead the answer and worked solution →According to Lewis, an acid is any species thatRead the answer and worked solution →BF3 reacts with NH3 by taking a share in NH3's electron pair. BF3 is therefore aRead the answer and worked solution →A Lewis base is a species thatRead the answer and worked solution →The generalised acid-base concept based on electron pairs was proposed byRead the answer and worked solution →In H2O + NH3 giving OH- + NH4+, water acts as aRead the answer and worked solution →Water can behave as both an acid and a base. This property is calledRead the answer and worked solution →Who stated the dilution law of weak electrolytes in 1888?Read the answer and worked solution →For a weak acid with very small dissociation, the degree of dissociation alpha varies with concentration c asRead the answer and worked solution →A weak monobasic acid is 0.05% dissociated in its 0.02 M solution. Its Ka isRead the answer and worked solution →Calculate the degree of dissociation of 0.01 M NH4OH with Kb = 1.8 x 10^-5.Read the answer and worked solution →A weak acid is 12% dissociated in 0.05 M. Its percent dissociation in 0.15 M solution is aboutRead the answer and worked solution →Acetic acid 0.1 M has Ka = 1.8 x 10^-5. Its hydronium ion concentration is aboutRead the answer and worked solution →Pure water ionizes only to a very small extent. This is calledRead the answer and worked solution →The value of the ionic product of water, Kw, at 298 K isRead the answer and worked solution →In pure water at 298 K, the concentration of hydronium ions isRead the answer and worked solution →Who defined pH in 1909?Read the answer and worked solution →The sum pH + pOH of an aqueous solution at 298 K equalsRead the answer and worked solution →

Worked practice questions

What is the equilibrium between ions and unionized molecules in solution called?

  1. Static equilibrium
  2. Phase equilibrium
  3. Physical equilibrium
  4. Ionic equilibrium
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Correct answer: D. Ionic equilibrium

An equilibrium set up between ions and unionized molecules in a solution is termed ionic equilibrium.

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Which kind of electrolyte ionizes completely or almost completely in dilute aqueous solution?

  1. Weak electrolyte
  2. Amphoteric electrolyte
  3. Non electrolyte
  4. Strong electrolyte
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Correct answer: D. Strong electrolyte

Strong electrolytes such as strong acids, strong bases and salts exist almost wholly as ions in dilute water.

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Which one of these is a weak base?

  1. NaOH
  2. KOH
  3. Ba(OH)2
  4. Fe(OH)3
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Correct answer: D. Fe(OH)3

Fe(OH)3 is only sparingly ionised in water, whereas NaOH and KOH are typical strong bases.

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