water mixture, Petrol and water mixture, Chalk and
water mixture, Sugar and water mixture, Copper
sulphate solution.
Q.6 What is meant by a solution? Give two examples of
solutions.
Q.7 State two reasons for supposing that brass is a mixture
and not a compound.
Q.8 What is a suspension? Give two examples of
suspensions.
What is a colloid? Give two examples of colloids.
colloidal solutions).
Q.10
What is the difference between solutions and colloids?
What i
Q.11 What is the difference between colloids and
suspensions?
Q.12 Classify the following into true solutions and colloidal
solutions:
Ink, Salt solution, Starch solution, Blood Sugar inlition
Answers
■HEY DEAR.
1》Water mixture =》solutions
2》petrol and water mixture=》Heterogeneous
3》Chalk a and water mixture=》Heterogeneous
4》sugar and water mixture=》Homogeneous
5》copper sulphate solutions=》Homogeneous
6》A solution is a homogeneous mixture of two or more substance. which we cannot distinguish in one from and other.
7》Brass is considered a mixture because :-
(I):- it show the properties of its constituents, copper and Zinc.
(ii)it has variable composition.
(the amount of brass and copper can vary from 20 to 35 per cent)
8》Those substances which are insoluble in water is called suspension. it is heterogeneous mixture in which the small particals of a solid are spread throughout a liquid without dissolving in it. E.g=》 Muddy water, chalk water solutions.
9》A colloid is a kind of solutions in which the size of solute particles is intermediate between those in true solutions and those in suspension.
E.g=》Blood , jelly, ink.etc.
12》True solutions=》sugar &starch
colloidal =》blood &ink.
■HOPE ITS HELPFUll