Question

Name the following based on the composition:
a) A type of substance that cannot be broken into simple substances chemically.
b) The substances resulting from the chemical combination of two or more elements in
fixed proportion.
c) Two or more substances are mixed together and the substances retain their individual
original properties.
d) Mixture of two solids (metals).

TNSCERT Class 9 General Science Ch3 Is Matter Around us Pure

Answer 1

elements(a)
compounds(b)
mixture(c)
solid sol(alloy)(d)

Answer 2

a) element are the substances which cannot be broken into simple substances chemically.
b) compound is formed by the chemical combination of two or more elements in fixed proportion.
c) in mixture, two or more substances are mixed together and the substances retain their individual original properties.
d) alloy is the resulting mixture of two metals.