Q18Multiple choice
Classify the following as physical or chemical properties
- (a)The composition of a sample of steel is: 98% iron, 1.5% carbon and 0.5% other elements.
- (b)Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
- (c)Metallic sodium is soft enough to be cut with a knife.
- (d)Most metal oxides form alkalis on interacting with water. 16-04-2018
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(a) The composition of a sample of steel is: 98% iron, 1.5% carbon and 0.5% other elements.
(c) Metallic sodium is soft enough to be cut with a knife.
(b) Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
(d) Most metal oxides form alkalis on interacting with water. 16-04-2018