Question

A. Tick() the correct options:
1. A soluble solid from a mixture of solid and liquid is obtained by
(a) filtration
(d) decantation
(b) condensation O (c) evaporation
2. What is formed when we dissolve a substance in water.
(a) solute
O (b) solvent
(c) solution o (d) none of these
solution in which no more substance can be dissolved at a given temperature is called
solution
(a) saturated
(b) unsaturated 0 (c) evaporated 0 (d) immiscible
4. The heavy insoluble particles that settle down at the bottom of a solution is called
(a) decant o (b) filtrate o (c) sediment o (d) distillate
5. Which of the following process(es) should be used to separate salt and san
(a) filtration, evaporation and condensation
(b) evaporation
(c) condensation and sedimentation
(d) sedimentation
6. During filtration, what do we obtain on the filter paper?
(a) residue o (b) decant O (c) filtrate O (d) none of these
7. After harvesting, food grains are separated by
(a) threshing (b) hand-picking 0 (c) winnowing (d) evaporation
AL​

Answer 1

Answer:

The correct answers for the given questions will be

1. evaporation,  2. solution 3. saturated 4. sediment 5. filtration, evaporation and condensation  6. residue  7. threshing

Explanation:

1. A soluble solid from a mixture of solid and liquid is obtained by the process of evaporation. The main principle is the separation of the soluble solid from a mixture by evaporating the liquid component.
2. Solution is formed when we dissolve a substance in the water.
3. Saturated solution is that solution in which no more substance can be dissolved at a given temperature.
4. Due to the gravity, the heavy insoluble particles that settles down at the bottom of a solution is called sediment.
5. The best method used for separating salt and sand mixture is filtration, evaporation and condensation.
6. Residue is the solid that we obtain on the filter paper during filtration.
7. After harvesting, food grains are separated by the threshing process in which grain or seeds are separated from the stalk by beating harvested products.

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Answer 2

Explanation:

एस्सेल वर्ल्ड वाइल्ड फ्रॉम अ मिक्सचर ऑफ सॉइल एंड लिक्विड इज ऑफ स्टैंड बाय