Which one of the following is conjugate acid of water in the reac

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 Multiple Choice QuestionsMultiple Choice Questions

241.

Which of the following statement is correct?

  • Basic nature increases on increasing pH

  • Basic nature decreases on increasing pH

  • Acidic nature increases on increasing pH

  • None of the above


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242.

Which one of the following is conjugate acid of water in the reaction?

H2SO4 + H2 H3O+ + HSO4-

  • H2O

  • H3O+

  • SO42-

  • HSO4-


B.

H3O+

In the above reaction, H2SO4 lose a proton (H+) which is gain by H2O, hence H2SO4 is an acid and H3O+ is base. If this reaction is reversible H3O+ losses a proton which is accepted by HSO4- so H3O+ is an acid and HSO4- is base. So, conjugate base of H2SO4 is HSO4- and conjugate acid of H2O is H3O+.


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243.

The product of H+ and OH- of water will be

  • Kw = 10-12

  • Kw = 10-14

  • Kw = 10-11

  • Kw = 10-10


244.

For NaCl, the Ksp = 36mol2 L-2, the molar concentration of it will be  

  • 136M

  • 116 M

  • 36 M

  • 6 M


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245.

In the equilibrium reaction 2HI (g)  H2 + I2 which of the following expressions is true?

  • Kp = Kc

  • Kc = 2Kp

  • Kp > Kc

  • Kc = Kp (RT)2


246.

Strongest Bronsted base among the following anions is:

  • ClO-

  • ClO2-

  • ClO3-

  • ClO4-


247.

1.1 moles of A and 2.2 moles of B are mixed in a container of one litre volume to obtain the equilibrium A + 2B  2C + D.

At equilibrium 0.2 moles of C are formed. The equilibrium constant for the above reaction is

  • 0.001

  • 0.002

  • 0.003

  • 0.004


248.

In which solution/ solvent the solubility of AgCl is minimum?

  • 0.01 M NaCl

  • 0.01 M CaCl2

  • Pure water

  • 0.001 M AgNO3


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249.

Which one of the following salts gives an acidic solution in water?

  • CH3COONa

  • NH4Cl

  • NaCl

  • CH3COONH4


250.

Which of the following exhibits highest solubility in water?

  • NH3

  • PH3

  • AsH3

  • SbH3


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