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Answer the following question in a few sentences:
Classify the following as physical or chemical properties
(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.
(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.
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