Chemistry - Ionic Equiliberia in Aqueous Solution

Question - 1

According to Lowry-Bronsted concept the relative strength of the bases CH3COO-,OH- and CIfollows the order 

  • A OH->CH3COO->CI-
  • B CH3COO->OH->CI-
  • C CH3COO->CI->OH-
  • D OH->CI->CH3COO-

Question - 2

Which one of the following does not act as Bronsted acid?

  • A NH4+
  • B HSO-
  • C B(OH)3
  • D HCO-3

Question - 3

Which one of the following is not a Bronted base?

  • A CO
  • B MH3
  • C H2O
  • D O2-

Question - 4

The conjucgate base of HBr is 

  • A Br+
  • B H+
  • C Br2
  • D H2Br+

Question - 5

All of the following are conjugate acid_base pair except 

  • A NH4+,NH3
  • B H3O+,OH-
  • C NH3,NH2
  • D HF,F-

Question - 6

Which one of the following solutions is basic?

  • A HOCI
  • B NaHSO4
  • C NH4NO3
  • D NaOCI

Question - 7

A metal ion Which accepts electron pair to form a coordinate bond is termed as 

  • A Lewis acid
  • B Lewis base
  • C Bronsted acid
  • D Bronsted base

Question - 8

The Dissociation constants of few monobasic acids are given in parenthesis .Which one of the following is the storngest acid?

  • A acid  A (Ka = 1.85 * 10-5)
  • B acid  B (Ka = 2.1 * 10-4)
  • C acid  C (Ka  = 606 * 10-5)
  • D acid  D (Ka = 6.67 * 10-4)

Question - 9

H2PO4- is conjugate base of 

  • A H2P2O7
  • B H3PO4
  • C HPO4
  • D PO42-

Question - 10

Which one of the following is a Lewis base?

  • A BF3
  • B AICI3
  • C Ag+
  • D F-
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