Question

Fill in the blanks 1×18=18 1.The continuous zig-zag movement of colloidal particles in a dispersion medium is called____. 2.In tincture of iodine, the solute is__ and solvent is______. 3A pure substance which is made up of only one kind of atom and cannot be broken into two or more simpler substances by physical or chemical means is referred to as____. 4.Crystal alum separated from impure samples by……………………. Method. 5.………………………… method used for separation of petroleum products. 6.We can separate the volatile component from its non volatile solute by the method of…………. 7. To separate dye from ink ……….method is used. 8. During water purification system in water works, in ________ tank bacteria are killed. 9. …….was the first scientist to use the term element. 10. Some elements have intermediate properties between those of metals and nonmetals are called……… 11. To make 50% solution of salt in
water ,We need ……...grams of salt in 120 g of solution. 12. Is scattering of beam of light through a medium is called…….. 13.1.Common salt is _________. 14.A mixture contains more than ______ substance mixed in ______ proportion. 15.Properties of a __________ are different from its constituent elements, whereas a _______ shows the properties of its constituting elements.​

Answer 1

Answer:

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Answer 2

Answer:

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