Important Questions of Equilibrium Chemistry | Zigya

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111.

Which of the following is a weak acid?

  • C6H6

  • CH3COOH

  • CH2=CH2

  • CH3COCH3


112.

The hydrogen ion concentration of a solution is 3.98 × 10-6 mole per liter. The pH value of this solution will be

  • 6.0

  • 5.8

  • 5.4

  • 5.9


113.

The solution of BiCl3 in dil. HCI when diluted with water, white precipitate is formed which is

  • Bismith oxychloride

  • Bismith oxide

  • Bismith hydroxide

  • None of the above


114.

The strongest acid is

  • acetic acid

  • trichloroacetic acid

  • dichloroacetic acid

  • monochloroacetic acid


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115.

Which of the following is the strongest base?

  • C6H5NH2

  • CH3NH2

  • NH3

  • CH3CONH2


116.

The degree of ionization of 0.4 M acetic acid will be (Ka = 1.8 × 10)

  • 6.71 × 10-3

  • 1.6 × 10-3

  • 0.4 × 1.8 × 10-3

  • 1.8 × 10-5


117.

The product of molar concentrations of hydrogen ions and hydroxide ions in a 0.01 M aqueous solution of sodium chloride is known as

  • hydrolysis constant of salt

  • dissociation constant of acid

  • dissociation constant of base

  • ionic product of water


118.

A solution contains Cl-, I- and SO43- ions in it. Which of the following ion is capable to precipitate all of the above when added in this solution?

  • Pb2+

  • Ba2+

  • Hg2+

  • Cu2+


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119.

What is the pH of millimolar solution of ammonium hydroxide which is 20% dissociated?

  • 3.699

  • 10.301

  • 4.691

  • 9.301


120.

Which of the following compounds is most acidic in nature?

  • 4-chlorobutanoic acid

  • 3-chlorobutanoic acid

  • 2-chlorobutanoic acid

  • Butanoic acid


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