Q.1. The colour of true solution of alum in water is
(a) Colorless (6) blue (c) yellow
(d) Green.
Q.2. The substance which does not form a suspension in water is
(a) common salt (b) sand
(c) soil
(d) chalk powder
Q.3. In the preparation of temporary mount of onion peel which of the following is not used
(a) Water
(b) glycerin (c) safranin
(d) alcohol
Q.4. Plant cells with thickened at corners, non-lignified cell walls are
(a) Parenchyma (b) collenchyma (c) sclerenchyma
Q.5. Which of the following is most stable?
(a) True solution
() colloid
(c) suspension (d) none of these
Q.6. Tyndall effect can be observed easily in which of the following solutions
(a) Salt solution (b) sugar solution (c) salt into water (d) none of these
Q.7. The animal whose blood is not the carrier of oxygen to the tissues is
(a) Toad
(b) Frog
(c) Man
(d) Cockroach
Q.8. A sublime substance used as room freshener is
(a) odonil
(b) naphtha
(c) nitrogen
(d) carbon
Q.9. The tissue that has the longest cell in the body is
(a) epithelial (6) muscular (c) nervous tissue
Q.10. In which of the following can filtration separates the components of the mixture
(a) starch and water (b) Sand and water (C) alum and water
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Answer:
I don't know how to solve the problem
Explanation:
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