Question

1. An element reacts with oxygen to give a

compound with a high melting point. This

compound is also soluble in water. The element is

likely to be-

a) calcium b) carbon c) silicon d) iron

2. Metals oxides are _________ in nature.

a) acidic b) basic c) amphoteric d) neutral

3. The non – metal which can conduct electricity is-

a) Graphite b) iodine c) carbon d) diamond

4. Arrange copper, silver and aluminium in

increasing order of reactivity.

5. A list of common metals arranged in order of

their decreasing reactivity is known by what

name?

6. A ________ reactive metal displaces a ________

reactive metal from its salt solution​

Answer 1

Answer:

A. cacium

B. basic

C. Graphite

D. Allulminium, copper, silver

E. Least Reactivity Series

F. More and less