Question

Deepak was asked to prepare two samples of suspension by his teacher. When he went near the lab shelf he found the following substances:
(i) Fine sand (ii) Common Salt
(ii) Starch Powder (iv) Alum
(iii) Egg albumin (vi) Clay




To make a suspension Deepak should select

(a) (i) and (ii) (b) (i) and (vi)


(c)(ii) and (iii) (d) (iv) and (v)

Answer 1

Answer:

D

Explanation:

because it forms suspension

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Answer 2

Answer:

(c)(ii) and (iii)

Suspension in science refers to a mixture where a solid particle does not dissolve in a liquid solution. These types of mixtures are referred to as heterogeneous. Homogeneous mixtures result from a uniform distribution of particles in a mixture. Starch can be used as a suspending agent in the preparation of suspension as it is insoluble in water. Albumin 20 is added to the isotonic suspension of washed red cells immediately prior to transfusion.