Question

2.
IV. Very Short Answer Questions
1.
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Name the gas evolved when a metal reacts with water.
3.
An element forms an oxide which is basic in nature. State whether the element is a metal or a
4. Name the most reactive metal placed on the top in the reactivity series.
5. What are ores?
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Answer 1

Answer:

Explanation:

1..Metals react with water and produce a metal oxide and hydrogen gas.

3.An element forms an oxide which is basic in nature. State whether the element is a metal or a non- metal? An element that forms an oxide which is basic in nature is a metal. This is because metallic oxides are basic in nature and they react with water to form bases.

4.. Potassium

5.Metal ores are generally oxides, sulfides, silicates, native metals such as copper, or noble metals such as gold. Ores must be processed to extract the elements of interest from the waste rock. Ore bodies are formed by a variety of geological processes generally referred to as ore genesis.