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Which of the following best defines the term 'salt'?
It is salty in taste
Contains sodium ions and chloride ions
It is an ionic compound
Formed when hydrogen ion in acid is replaced by a metal ion or ammonium ion
Which of the following is a soluble salt?
Lead (II) sulphate
Which of the following is a salt and soluble in water?
The following salts are soluble except...
Nitric acid will change to nitrate salt when hydrogen ions are replaced by... (More than one answer)
Which of the following are suitable to prepare copper(II) chloride? (More than one answer)
Copper(II) nitrate and sodium chloride
Copper metal and hydrochloric acid
Copper(II) oxide and hydrochloric acid
Copper(II) carbonate and hydrochloric acid
When salt K is added into sulphuric acid, a gas is released which turns lime water cloudy. What is salt K?
Which of the following are the products for the reaction between zinc powder and dilute nitric acid?
Zn(NO3)2 and H2O
Zn(NO3)2 and H2
Zn(NO3)2 , CO2 and H2O
What is the process shown in the above diagram?
Purification of insoluble salt
Purification of soluble salt
Preparation of insoluble salt
Preparation of soluble salt
Which pair of solutions when combined will produce an insoluble salt?
Hydrochloric acid and magnesium nitrate
Sodium chloride and iron(II) sulphate
Nitric acid and potassium carbonate
Barium chloride and sodium sulphate
Insoluble salt can be prepared through...
Which equation represent double decomposition reaction that forms a precipitate?
CaO + H2SO4 --> CaSO4 + H2O
AgNO3 + NaCl --> AgCl + NaNO3
Pb + HNO3 --> Pb(NO3)2 + H2
Ca(OH)2 + 2HCl --> CaCl2 + 2H2O
Salt X releases brown gas when heated strongly. The residue of salt X after heating is yellow when hot and white when cold. What is salt X?
What is the colour of residue when copper(II) carbonate is heated strongly?
When potassium iodide is added into lead(II) nitrate, a yellow precipitate is formed. What is the name of the yellow precipitate?
When calcium carbonate is heated strongly, colourless gas which is carbon dioxide is released. How to confirm the colourless gas is carbon dioxide?
Put moist red litmus paper at the mouth of the test tube
Put glowing wooden splinter at the mouth of the test tube
Flow the gas into test tube containing lime water
Put burning wooden splinter at the mouth of the test tube
When ammonium chloride is heated, a student put moist red litmus paper at the mouth of the test tube to test the gas released. What happen to the litmus paper?
Does not change colour
Turns to white
Turns to black
Turns to blue
What anion can be identified from the test shown in the above diagram?
Based on the table above, which ions may be present in the salt?
Which of the following ions form a white precipitate that does not dissolve in excess NaOH solution and no precipitate when added with NH3 solution?
Which of the following ions form a precipitate that dissolve in excess ammonia solution? (More than one answer)
When NaOH solution is added into a salt solution, brown precipitate is formed. What is other method that can be done next to confirm the presence of the cation?
Add potassium iodide into the salt solution
Add Nessler reagent to the salt solution
Heat up the salt solution
Add potassium thiocyanate into the salt solution
The above table are the results for anion and cation test to identify salt G. Based on the results, what is salt G?
You were asked by your teacher to verify the cation in a sample of iron(II) chloride solution. Which of the following substance would you use?
Sodium hydroxide solution
Hydrochloric acid and barium chloride
You were asked by your teacher to verify the anion in a sample of ammonium chloride solution. Which of the following substance would you use?
Nitric acid and silver nitrate
Hydrochloric acid and barium chloride
Sulphuric acid and iron(II) sulphate
Nitric acid and barium nitrate
Based on the above diagram, Z could be...
What happened when potassium thiocyanate is added into salt solution containing Fe3+ ion?
Dark blue precipitate is formed
Blood red solution is formed
Brown precipitate is formed
Dark blue solution is formed
What is the colour of solid magnesium carbonate?
Which of the following salt is prepared through titration method?
Diagram above shows the preparation of copper(II) sulphate salt. After copper(II) oxide is being added into the acid and stirred, the mixture is filtered. What is the next step after the mixture is filtered?
Heat the filtrate solution until saturated
Dry the salt between two filter papers
Leave the salt for a few days
Cool the salt to room temperature