PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoAnswer the following questions in a few sentences:
1. While diluting a solution of salt in water, a student by mistake added acetone (boiling point 56°C). What technique can be employed to get back the acetone? Justify your choice.
can separate acetone from the mixture of salt and water. There are considerable differences in the boiling points of acetone (56°C) and (100°C).
2. What would you observe when
(a). a saturated solution of potassium chloride prepared at 60°C is allowed to cool to room temperature.
(b). an aqueous sugar solution is heated to dryness.
(c). a mixture of iron filings and sulphur powder is heated strongly.
(a). a saturated solution of potassium chloride prepared at 60°C is allowed to cool to room temperature.
(b). an aqueous sugar solution is heated to dryness.
(c). a mixture of iron filings and sulphur powder is heated strongly.
(a).
(b).
(c).
(b).
(c).
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