111.

Which of the following is a weak acid?

• C₆H₆

• CH₃COOH

• CH₂=CH₂

• CH₃COCH₃

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

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

The strongest acid is

• acetic acid

• trichloroacetic acid

• dichloroacetic acid

• monochloroacetic acid

Which of the following is the strongest base?

• C₆H₅NH₂

• CH₃NH₂

• NH₃

• CH₃CONH₂

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

• 6.71 × 10^-3

• 1.6 × 10^-3

• 0.4 × 1.8 × 10^-3

• 1.8 × 10^-5

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

A solution contains Cl^-, I^- and SO${}_4^{3-}$ 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⁺

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

• 3.699

• 10.301

• 4.691

• 9.301

Which of the following compounds is most acidic in nature?

• 4-chlorobutanoic acid

• 3-chlorobutanoic acid

• 2-chlorobutanoic acid

• Butanoic acid