Chemistry SPM

Which of the following is blue in colour

• Copper (II) Nitrate

• Magnesium Sulphate

• Iron (II) Nitrate

• Iron (III) Sulphate

Which of the following is insoluble in water?

• Zinc Sulphate

• Lead (II) Bromide

• Silver Chloride

• Magnesium Nitrate

• Calcium sulphate

A precipitate is formed when 2 cm³ of an unknown salt solution is added to 2 cm³ of nitric acid and 2 cm³ of barium chloride solution. What anion is present in the unknown salt solution?

• Nitrate ion

• Carbonate ion

• Chloride ion

• Sulphate ion

Which pair(s) of salt solutions can be used to prepare lead (II) sulphate

• Lead (II) nitrate and sodium sulphate

• Lead (II) chloride and potassium sulphate

• Lead (II) carbonate and sodium sulphate

• Lead (II) bromide and sodium sulphate

Which salts will form gas bubbles when 2 cm³ of sulphuric acid is added to it?

• Sodium Chloride

• Iron (II) Carbonate

• Lead (II) Iodide

• Zinc Nitrate

• Magnesium Sulphate

An unknown salt X forms a colourless solution in both excess sodium hydroxide solution and excess ammonia solution. What cation is present in salt X?

• Zinc ion

• Calcium ion

• Ammonium ion

• Aluminium ion

• Magnesium ion

Tags

NGSS.HS-PS1-1

Which of the following pairs of substances can be used to prepare copper (II) chloride

• Copper + Hydrochloric Acid

• Copper (II) nitrate + Hydrochloric Acid

• Copper (II) Oxide + Hydrochloric Acid

• Copper (II) sulphate + Hydrochloric Acid

• Copper (II) Carbonate + Hydrochloric Acid

Salt X releases a brown gas when heated. Which of the following salts might be salt X?

• Sodium sulphate

• Calcium carbonate

• Magnesium nitrate

• Aluminium chloride

Tags

NGSS.MS-PS1-2

Salt X forms a white precipitate in excess sodium hydroxide solution but forms a colourless solution when a little of ammonia solution is added. What cation is present in salt X?

• Zinc ion

• Magnesium ion

• Ammonia ion

• Calcium ion

• Aluminium ion

If 2 cm³ of salt X is added to 2 cm³ of nitric acid, colourless gas bubbles are released. What anion is present in salt X?

• Iodide ion

• Sulphate ion

• Carbonate ion

• Nitrate ion