ENTRANCE TEST – 2010 Multiple Questions and Answers.




36.One mole of any gas at standard temperature and pressure (STP) occupies a volume of
A. 20.414 dm3
B. 22.414 dm3
C. 22.414 cm3
D. 23.414 dm3

37.The relative abundance of the isotopes of the elements can be determined by:
A. Mass Spectrometry
B. Mass-mole relationship
C. Mole-volume relationship
D. Mass-volume relationship

38.If we are given the mass of one substance, we can calculate volume of other substances and vice a versa with the help of balanced chemical equation. This is called
A. Mass-mass relationship
B. Mass-mole relationship
C. Mole-volume relationship
D. Mass-volume relationship

39.Sublimation is used to purify
A. Ammonium sulphate
B. Sodium chloride
C. Benzoic acid
D. Lead carbonate

40.The purity of a substance can be identified by
A. Sublimation
B. Filtration
C. Chromatography
D. Solvent extraction

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