Chemistry
Grade-7
Easy
Question
State whether the following statements are true or false.
(i) A heterogeneous mixture can be separated by using the physical methods.
(ii) A homogeneous mixture can be separated by using the physical methods.
(iii) Alloys are the examples of homogeneous solutions.
Hint:
Heterogeneous mixtures can't be separated by physical methods.
The correct answer is:
- The physical methods used for separating heterogeneous mixtures into their constituents are handpicking, sieving, and filtration
- Physical methods cannot be used to separate components of a homogeneous mixture. It uses the centrifugation method to separate them.
- Alloys are two or more elemental combinations that are homogenous. Either a metal or two metals and a non-metal could be used.
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