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WorksheetsSalt, properties of salts, uses of salts
Total questions: 10
Worksheet time: 9mins
Salts
are formed from joining positive and negative ions.
increase OH- ions.
forms a salt and water.
increases H2O ions.
A salt is formed when nitric acid combines with sodium hydroxide. What are present in the salt that forms?
Sodium chloride
sodium ions and nitrate ions
only sodium ions
only nitrate ions
Which of the following is NOT part of the definition of salt?
Ionic compound
when hydrogen ion of an acid
is replaced by a metal cation or ammonium ion
contains hydrogen ions
What is the correctly written chemical formula for the ionic compound, strontium oxide?
[Hint: strontium, Sr is in Group 2]
Sr2O
SrO2
Sr2O2
SrO
Salts that are made with hydrochloric acid are called ______________.
chlorides
sulfates
nitrates
carbonates
Which of the following statements best define the term ‘salt’?
Salt is formed when metal reacts with an alkali.
Salt contains sodium ions and chloride ions.
Salt is formed from a weak Van der Waals’ forces of attraction.
Salt is formed when the hydrogen ions in an acid is replaced by metal or ammonium ions.
Which of the following are the physical characteristics of salt crystal?
I They have similar size.
II They have fixed angle.
III They have fixed geometrical shapes.
IV They have flat surface, straight edges and sharp angles.
I, II and III
I, II and IV
I, III and IV
II, III and IV
What are the products if magnesium reacts with hydrochloric acid?
Magnesium chloride + Hydrogen
Magnesium sulfate + Hydrogen
Magnesium oxide + Hydrogen
Magnesium sulfide + Hydrogen
Which of the following preparation of salt is incorrect?
acid + alkali
acid + metal oxide
acid + carbonate
acid + acid
Which of the following is not a use of a salt as a food preservative?
ammonium sulphate, (NH4)2SO4 to preserve fruit jam
common salt, NaCl to prepare salted fish
sodium benzoate, C6H5COONa to preserve sauces
sodium nitrite, NaNO2 to preserve sausages
