Question

1. which one of these is a metal ?
(1) oxygen
(2) hydrogen
(3) chlorine
(4) calcium

2. which of the following is an element?
(1) silica
(2) Glass
(3) magnesia
(4) boron

3. A heterogeneous mixture in which the small particles of a solid are spread throughout a liquid is :-
(1) A solution
(2) An element
(3) A suspension
(4) A compound ​

Answer 1

1. CALCIUM
2. BORON
3. A SUSPENSION

Explanation:

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