Give reasons-
a) Water is a compound not mixture
b) We do not see Tyndall effect in true solution
c) Condensation is a physical process
Answers
Answer:
A)
(1) Water is made up of 2 elements in a fixed ratio.
(2) Its constituents can be separated only by chemical or electrochemical reactions.
(3) Its formed by reaction between hydrogen & oxygen with a chemical bond.
(4) Water has totally different properties from 2 elements.
(5) It has a fixed boiling point.
B)
In true solutions, size of the particles are very small, it is not in the colloidal range, it is lesser than the colloidal range. Therefore, true solutions does not show tyndall effect as the particle are not large enough to scatter the light incident on it.
C)
Condensation is a physical change where a substance in the gaseous state changes to its liquid state as a result of energy loss at the molecular level due to heat loss or applied pressure.
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