Q.

The substances which have a definite chemical composition and definite chemical and physical properties are called _________ substances.

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a

impure

b

mixtures

c

solutions

d

pure

answer is A.

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Detailed Solution

  • The substances which have a definite chemical composition and definite chemical and physical properties are called pure substances.
  • Pure substances are further classified as elements and compounds.
  • For example, gold, silver, water, sodium chloride, etc.
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The substances which have a definite chemical composition and definite chemical and physical properties are called _________ substances.