CHEMISTRY WORKSHEET 3 CHAPTER 4: SEPARATION OF SUBSTANCE TOPIC: METHODS OF SEPERATION OF INSOLUBLE SOLID-LIQUID MIXTURES Grade:VI
Fill in the blanks
1. is a universal solvent

2. An example of a coagulating agent is

3. and are used for removing insoluble impurities from river and canal water in water treatment plant

4. A special type of paper with very small holes used for filtration in laboratories is called

Answer the following

1. Differentiate between solute and solvent

2. Differentiate soluble and insoluble substances with example.

3. What are suspensions? How can the particles of suspension be removed?
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c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.

the correct answer would be b) volume versus temperature, because they are also directly proportional.