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WorksheetsIce Breaking with Salts
Total questions: 11
Worksheet time: 7mins
What is salt?
Ionic compound formed when hydrogen ion, H+ in an acid is replaced with a metal ion or ammonium ion, NH4+.
Ionic compound formed when hydroxide ion, OH- in an alkali is replaced with a metal ion or ammonium ion, NH4+
Acid + Alkali (Base) will produce?
Salt
Water
Salt and Water
Which of the following are the physical characteristics of salt crystal?
I - Similar size
II - Fixed angle
III - Fixed geometrical shapes
IV - Flat surface, straight edges and sharp angels
I, II and III
I, II and IV
I, III and IV
II, III and IV
What are the products when magnesium with sulphuric acid?
Magnesium oxide + Hydrogen
Magnesium sulfate + Hydrogen
Magnesium sulfide + Hydrogen
Which of the following is NOT a use of a salt as a food preservative?
Common salt, NaCl to prepare salted fish
Sodium nitrite, NaNO2 to preserve sausages
Ammonium sulfate, (NH4)2SO4 to preserve fruit jam
Which of the following is not true?
All nitrate salt are soluble
All sulphates are soluble except Copper (II) sulphate, Barium sulphate and Lead (II) sulphate.
What is the colour of hydrated Copper (II) sulphate?
Pink
Blue
White
Brown
Which of the following salts dissolves only when hot?
KCl
NaCl
PbCl2
State a reason why filtration is carried out during the preparation of Copper (II) sulphate when copper (II) oxide is added to dilute Sulphuric (VI)?
To remove water
To dry Copper (II) Sulphate
To remove unreacted Copper (II) oxide
To speed up the rate of reaction
Which of the following salts is insoluble?
Sodium chloride
Calcium carbonate
Copper (II) Sulphate
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