FSC Part 1 Chemistry Chapter 2 Experimental Techniques in Chemistry Online Test | ilmkidunya

Chemistry Fsc Part 1 Chapter 2 Online Test

Sr. #	Questions	Answers Choice
1	Which statement about Gooch crucible is incorrect.	It is made up of porcelain Quick filtration occur by using suction filtering apparatus All the chemicals which reacts with paper can be filtered. Filter medium used in this crucible consists many folds of filter paper only.
2	If fluted fitter paper, rate of filtration increases as compared tot he cone shaped filter paper because.	It has greater number of holes in it. It has greater surface are of filtration Fluted filter paper has greater pore sizes than cone shaped filter paper. Thickness of paper is more than cone shaped filter paper
3	"The components of which mixture can be separated by filtration".	NaCl and CaCl2 Calcium carbonate and NaCl Blue and green inks Sand and naphthalene
4	The comparative rates at which the solutes move in paper chromatography depend on.	The size of paper used Rf values of solutes Temperature of the experiment Size of the chromatographic tank used
5	Solvent extraction method is a particularly useful technique for separation when the product to be separated is.	Non volatile or thermally unstable Volatile or thermally stable Non volatile or thermally stable Volatile or thermally unstable
6	Solvent extraction is an equilibrium process and it is controlled by.	Law of mass action The amount of solvent used Distribution law The amount of solute
7	During the process of crystallization, the hot saturated solution.	Is cooled very slowly to get large sized crystals. Is cooled at a moderate rate to get medium sized crystals Is evaporated to get the crystals of the product. Is mixed with an immiscible liquid to get the pure crystals of the product.
8	A filtration process could by very time consuming if it were into aided by a gentle suction which is developed.	If the paper covers the funnel upto its circumference If the paper has got small sized pores in it. If the stem of the funnel is large so that it dips into the filtrate If the paper fits tightly
9	Drying agent used in crystallization is.	P2O3 Animal charcoal KMnO4 Water
10	The drying agents used in desiccator is.	BeCl2 MgCl2 CaCl2 SrCl2
11	The substance used for decolorization of crystalline substance is	G2O5 Chloroform Animal charcoal Soda ash
12	During chromatography strip should be dipped into solvent mixture to a depth of.	3-4 mm 4-5 mm 5-6 mm 6-7 mm
13	During paper chromatography, the stationary phase is.	Solid Liquid Gas Plasma
14	The comparative rates at which the solutes move in paper chromatography depends on.	The size of paper used Their Rt values solutes Temp of the experiment Size the chromate grapic tank
15	Chromatography in which the stationary phase is a solid is classified as.	Partition chromatography Gas chromatography Adsorption Chromatography Thin layer chromatography
16	A component having small value of K mostly remains in the.	Stationary phase Mobile phase Chromatographic tank Solvent
17	Solvent extraction method is particularly useful technique for separation when the product to be speared is.	Non volatile or thermally unstable Volatile or thermally stable Non volatile or thermally stable Volatile or thermally unstable

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