List-I | List-II |
A. Glycerol | (i) Sublimation |
B. o-nitrophenol | (ii) Beilsteins test |
C. Anthracene | (iii) Victor-Meyers method |
D. Halogens distillation | (iv) Steam |
E. Molecular weight | (v) Vacuum distillation |
(vi) Eudiometry |
A) A-(v), B-(iv), C-(i), D-(ii), E-(iii)
B) A-(iv), B-(v), C-(i), D-(vi), E-(ii)
C) A-(vi), B-(iv), C-(i), D-(m), E-(ii)
D) A-(v), B-(iv), C-(vi), D-(ii), E-(iii)
E) A-(iv), B-(vi), C-(ii), D-(iii), E-(v)
Correct Answer: A
Solution :
Sublimation-Conversion of solid directly into gaseous phase. The liquid state does not exist. e.g.,\[-\] naphthalene, anthracene. Beilstein test-Simple chemical lest for halogens. Victor-Meyers method-Standard laboratory method for determining the molecular weight of a volatile liquid. Steam distillation- Vaporization of the volatile constituents of a liquid. It is special type of distillation for a temperature sensitive materials like aromatic natural compounds, eg,-ortho nitrophenol, cinnamaldehyde. Vacuum distillation-Distillation at reduced pressure. It is generally used in case of high boiling liquids which decompose below their normal boiling points, cant be purified by distillation at atmospheric pressure\[eg,-\]glycerol. Eudiometry-It is the process of determining the constituents of a gaseous mixture by eudiometer. It is used for ascertaining the purity of air or amount of\[{{O}_{2}}\]in it.You need to login to perform this action.
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