(Long Answer Type Questions, 5 Marks)
Q.25 Write your observations when the following processes take place :
(1) An aqueous solution of sugar is heated to dryness.
(ii) A saturated solution of potassium chloride prepared at 608°C is allowed to cool at room
temperature.
(iii) A mixture of iron filings and sulphur powder is heated strongly.
(iv) A beam of light is passed through a colloidal solution.
(v) Dilute HCl is added to the mixture of iron and sulphur and heated strongly.
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Answer:
1) Pure sugar is obtained removing the water....
2) Crystals of pottasium chloride as obtained...
3) Iron sulphide is formed indicating a chemical reaction.
4) Tyndall effect is observed:- Scattering of light by collodial particles
5) Sorry I dont know this
Hope its clear...
Plz mark me as BRAINLIEST if u think my answer is ryt...:)
N sorry for nt solving the last one.....
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