WorksheetsQuiz on Acids, Bases, and Salts IGCSE
Total questions: 28
Worksheet time: 28mins
What is the pH of a neutral solution?
0
14
7
3
Which acid is commonly found in vinegar?
Nitric acid
Acetic acid
Hydrochloric acid
Sulfuric acid
What color does litmus paper turn in an acidic solution?
Blue
Green
Red
Yellow
Which of the following is a strong alkali?
Sodium hydroxide
Calcium carbonate
Ammonium hydroxide
Copper sulfate
What gas is produced when an acid reacts with a metal carbonate?
Nitrogen
Oxygen
Hydrogen
Carbon dioxide
Which indicator shows a range of colors depending on pH?
Litmus
Methyl orange
Universal Indicator
Phenolphthalein
What is the main characteristic of a base?
Has a pH of 7
Turns litmus red
Contains H+ ions
Turns litmus blue
Which of the following is an organic acid?
Sulfuric acid
Nitric acid
Hydrochloric acid
Citric acid
What is the result of neutralizing an acid with a base?
Salt and gas
Gas and water
Salt and water
Only water
Which of the following acids is found in the stomach?
Nitric acid
Hydrochloric acid
Sulfuric acid
Phosphoric acid
What is the formula for sulfuric acid?
HNO3
H2SO4
HCl
CH3COOH
Which of the following is a characteristic reaction of acids?
Reacts with metals to produce hydrogen
Reacts with bases to produce hydroxide
Reacts with water to produce oxygen
Reacts with salts to produce acids
What happens to the color of methyl orange in an alkaline solution?
Red
Yellow
Blue
Green
Which of the following is an amphoteric oxide?
Iron oxide
Sodium oxide
Zinc oxide
Calcium oxide
What is the primary use of slaked lime in agriculture?
To enhance soil drainage
To promote plant growth
To neutralize acidic soils
To increase acidity
Which of the following salts can be prepared by precipitation method?
silver nitrate
sodium carbonate
silver chloride
ammonium sulfate
Which of the following could be used as starting materials in preparing the insoluble salt barium carbonate using precipitation method?
barium nitrate and calcium carbonate
barium sulfate and zinc carbonate
barium chloride and magnesium carbonate
barium nitrate and potassium carbonate
The filtrate from reacting a metal with an acid must be evaporated but not to complete dryness.
True
False
You want to produce the soluble salt magnesium chloride. Which of the following are suitable starting materials?
magnesium hydroxide and chlorine
magnesium and hydrochloric acid
magnesium and silver chloride
none of the choices
When making a soluble salt from metal and an acid, which one should be added in excess?
the metal
the acid
both should be in equal amounts
none of them
When preparaing salt uisng acid and insoluble base, which one should be in excess?
the base
the acid
should be equal amounts
neither of the two
Which of the following is an insouble base?
NaOH
Na2O
CuO
Li2O
Which of the following can be mixed together as starting materials to prepare calcium chloride?
calcium nitrate + sodium chloride
calcium carbonate + silver chloride
calcium sulfate + sulfuric acid
calcium carbonate + hydrochloric acid
When preparing a soluble salt using acid and insoluble carbonate, why must the carbonate be in excess?
to avoid contamination of the salt
to make sure all of the carbonates react completely
to make sure both the crabonate and acid react completely
to make sure all of the acids react completely
In titration, both reagents must be soluble
True
False
it does not matter
The substance added that signals the end point of titration is called
enzyme
catalyst
indicator
promoter
The salt produced during titration is always
soluble
insoluble
coloured
transparent
When preparing salts using titration techniques, which one of the following is true?
The titration must be repeated 2 times with the indicator o
The titration must be repeated multiple times with the indicator only added on the first trial
The flask must be left resting only on the white tile until a colour change happens
When reading the volume added into the flask, the buret must be read at eye level
