Salts

All chloride salts are soluble except

• plumbum

• zinc

• magnesium

• sodium

Barium, Calcium and Plumbum are example of insoluble salt for

• carbonate

• nitrate

• chloride

• sulphate

Which of the following salts is water soluble?

• calcium sulphate

• sodium carbonate

• silver chloride

• lead (II) sulphate

Process of making insoluble salt using 2 soluble salt is called as

Which of the following is suitable to prepare lead (II) chloride salt?

• lead (II) sulphate solid and sodium chloride solution

• lead (II) nitrate solution and sodium chloride solution

• lead (II) carbonate solid and hydrochloric acid

• lead (II) oxide solid and hydrochloric acid

When hot, lead (II) oxide is brown in colour. When at room temperature, what is the colour for lead (II) oxide

• white

• green

• yellow

• brown

What is the colour for copper (II) carbonate?

• blue

• light blue

• green

• greenish-yellow

When potassium thiocyanate is added to Fe²⁺, what will you observe?

• No reaction

• light blue precipitate

• green precipitate

• dark blue precipitate

State the changes in colour when copper (II) carbonate is heated?

• blue

• pink

• black

• white

What is the product when carbonate salts is heated?

• Metal oxide and carbon dioxide gas

• Metal and carbon dioxide gas

• Metal oxide, carbon dioxide gas and water

• Metal oxide and water