Extraction of metals questions | form three Chemistry

Thw most abudant metal in the earth’s crust is

1. Iron
2. Aluminium
3. Calcium
4. Sodium

Answer / Solution

UNSOLVED

With the aid of balanced chemical equations wherever appropriate, briefly outline the extraction of Zinc from zinc blende.

Answer / Solution

UNSOLVED

Give three (3) main uses of zinc.

Answer / Solution

UNSOLVED

The function of limestone in the extraction of iron in the blast furnace is to

1. reduce iron oxide
2. precipitate earth materials to slag
3. remove carbon monoxide
4. separate molten iron from impurities
5. lower the temperature of the blast furnace

Answer / Solution

UNSOLVED

1. Why are metals used as

1. reducing agents?
2. conductors of electricity?

2. Give the name of the metals which fits the following descriptions

1. It must be kept under kerosene to protect it from water or air?
2. The metallic element in limestone.
3. Its green green coloured carbonate decomposes when heated to give a black oxide.
4. Its oxide is yellow when hot and white when cold.

Answer / Solution

UNSOLVED