Question

An element X burn in air to form an oxide.this oxide react with dilute sulphuric acid to form a salt. 1.what kind of oxide is formed by element X?2.what does this tell you about element X?3.how can you show that the oxide formed is basic or acidic

Answer 1

1.metal oxide
2.element is metal
3.oxide is basic because all metal oxides are basic in nature

Answer 2

1). The oxide formed by element X is metal oxide and in basic in nature.

2). The element X is metal. Only metallic oxides are basic that can react with acid to form salt.

3). Oxide formed is basic because it reacted to the acid to form salt and only a base can do that.