Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Ionic Equilibrum question

2011 · Q118
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Chemistry
  4. /Ionic Equilibrum
  5. /2011 · Q118

Ionic Equilibrum question

2011 · Q118

NEETChemistryIonic EquilibrumMCQ+4 / −1
Which of the following is least likely to behave as Lewis base?
  1. A
    H2O
  2. B
    NH3
  3. C
    BF3
  4. D
    OH−-−
View written solutionFree

Correct answer: C

The species which have a lone pair of electrons to donate or a negative charge on it can act as a Lewis base. Here, N atom in NH3 and O atom in H2O have lone pair of electrons available for donation. In OH– the negative charge on it results in to behave it as a Lewis base. But BF3 is an electron deficient species thus, it is least likely to behave as Lewis base.

PreviousNext

More from Ionic Equilibrum

  • What is [H+] in mol/L of a solution that is 0.20 M in CH3COONa and 0.10 M in CH3COOH? Ka for CH3COOH = 1.8 × 10−52010 · MCQ
  • If pH of a saturated solution of Ba(OH)2 is 12, the value of its Ksp is2010 · MCQ
  • In a buffer solution containing equal concentration of B− and HB, the Kb for B− is 10−10. The pH of buffer solution is2010 · MCQ
  • What is the [OH−] in the final solution prepared by mixing 20.0 mL of 0.050 M HCl with 30.0 mL of 0.10 M Ba(OH)2?2009 · MCQ
  • The ionization constant of ammonium hydroxide is 1.77 × 10−5 at 298 K. Hydrolysis constant of ammonium chloride is2009 · MCQ
  • Which of the following molecules acts as a Lewis acid?2009 · MCQ
  • Equal volumes of three acid solutions of pH 3, 4 and 5 are mixed in a vessel. What will be the H+ ion concentration in the mixture?2008 · MCQ
  • A weak acid, HA, has a Ka of 1.00 × 10−5. If 0.100 mol of this acid is dissolved in one litre of water, the percentage of acid dissociated at equilibrium is closest to2007 · MCQ