Experimental Techniques in Chemistry test 2

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A test from chapter 2 i.e Experimental Technique in Chemistry part 1. This is Free online test for FSc and Entry test Preparation for UET, NUST, FAST, GIKI, PIEAS, NFC, Punjab University, UHS, other Engineering Universities and Medical Colleges.

1. Science of the chemical characterization is stand under the heading of

A) industrial chemistry
B) experimental chemistry
C) analytical chemistry
D) physical chemistry

2. Several types of filter media are used for filtration depending on

A) nature of reaction
B) nature of reactants
C) nature of precipitate
D) nature of filter paper

3. Filtration by a glass funnel and filter paper is very

A) time consuming
B) difficult
C) fast
D) accurate

4. Date of filtration through conical funnel can be considerably increased by using

A) fine filter paper
B) ordinary filter paper
C) fluted filter
D) under suction crucible

5. Gooch crucible is used to filter the solution of

A) K2Cr2O7
B) KMnO4
C) KOH
D) under suction crucible

6. Basic principles of crystallization is that solute should be soluble in a suitable solution at

A) freezing temperature
B) room temperature
C) high temperature
D) low temperature

7. Premature crystallization of solution of filter paper or in funnel can be avoided

A) filtering hot saturated solution using hot funnel
B) filling warm solution
C) quick filtration
D) filtering cold solution

8. Safe and reliable method of drying crystal in through

A) pressing it between folds of filter paper
B) drying it in oven
C) evaporation of solution
D) vacuum desiccator

9. In solvent extraction solute can be separated from solution by shaking the solution with solvent which the solute is

A) more soluble
B) partially soluble
C) insoluble
D) soluble at high temperature

10. Repeated extraction using small portions of solvent are more

A) accurate
B) efficient
C) slow
D) rapic