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	Solvent extraction is an equilibrium process and is controlled by.	Law of mass action The mount of solvent used The amount of solute Distribution law
2	Compound which undergo sublimation is	KMnO4 CaCO3 NH4Cl Na2CO3
3	Which one is not example of a sublimate.	NH4Cl I NaCl Benzoic Acid
4	Which substance is nto a dehydrating agent.	CaCl3 CdCl2 Silica gel P2O5
5	The drying agent used in a desiccator.	Agcl NH4Cl P2O5 AlCl3
6	Which is not used as drying agent in a desiccator.	Cacl2 NaCl P2O5 Salica Gel
7	A filtration process could be very time consuming if it were not aided by a gentle suction, which is developed.	If the paper covers the funnel up to 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
8	Gooch crucible is made of.	Glass Paper Teflon Procelain
9	One of the following substances is not used as a drying reagent in a desiccator	Cons. H<sub>2</sub>SO<sub>4</sub> P<sub>2</sub>O<sub>5</sub> Silica gel 50% KOH
10	Chromatography is the process which involve the distribution of a solute between	Two mobile phases A stationary phase and mobile phase Two stationary and two mobile phases Two stationary phases
11	In paper chromatograghy the point at which the solvent rises to maximum extent is called	Event Chromatogram Solvent front Base line
12	The iodine present in water can be separated by which one of the following techniques	Sublimation Chromatography Filtration Solvent extraction
13	When i₂present in the aquous layer in the form of I^-1₃foes to CCI₄layer, then the change in colour is from	Purple to brown Purple to green Green to brown Brown to purple
14	One of the following substances does not undergo sublimation	KMnO<sub>4</sub> Naphthalene NH<sub>4</sub>CI Iodine
15	Which one of the following substances is used as decolouring agent	Animal charcol Concentrated H<sub>2</sub>SO<sub>4</sub> CaCI<sub>2</sub> Silica gel
16	In order to have good crystals of a substance the temperature of the system at the time of preparation of solution should be	Around 0°C Around room temperature Sufficiently more than room temperature Just above the room temperature
17	The crystallization of a solid substance is done from a hot saturated solution. The solution is	Evaporated rapidly Cooled very slowly to get good crystals Cooled rapidly to get excellent crystals Mixed with another miscible solvent

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