Acids, Bases And Salts_Proticity, Strength, PH And Indicators Question Preview (ID: 51981)


Proticity, Strength, PH And Indicators. TEACHERS: click here for quick copy question ID numbers.

Strength of acid affects __.
a) proticity of the acid
b) concentration of the acid
c) amount of base required for complete neutralisation
d) pH of the solution

What is the colour of the solution when Universal indicator is added to a weak acid?
a) Red
b) Yellow
c) Purple
d) Blue

What is the pH of a 1.0 x 10^-4 mol dm^-3 NaOH solution?
a) 10
b) 4
c) 4.1
d) 10.1

What is the colour of the solution when Universal indicator is added to pure water at 25 deg cel?
a) Red
b) Purple
c) Green
d) Orange

Which is a weak base?
a) Potassium carbonate
b) Sulfuric acid
c) Ethanoic acid
d) Sodium hydroxide

What is the pH of a 1.0 x 10^-4 mol dm^-3 HCl solution?
a) 1.0
b) 4.1
c) -4
d) 4.0

Which is a strong acid?
a) Ethanoic acid
b) Sulfuric acid
c) Sodium hydroxide
d) Potassium carbonate

Which method allows us to distinguish between a strong and weak acid?
a) Titration with a base
b) Test for electrical conductivity using a light bulb
c) Use of blue litmus paper
d) Reaction with Mg strip

Which method does not allow us to distinguish between an acid and an alkali?
a) Test for electrical conductivity using a light bulb
b) Use universal indicator
c) Use pH meter
d) Reaction with ammonium carbonate, followed by gas tests

What's the proticity of sulfuric acid?
a) 1
b) 2
c) 3
d) 4

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