Search
.Management Sciences
Category: Diagnostic Test
Which of the following set has all species isoelectronic__________________?
0
A. F – Cl – Br
B. Li+1 – Na+1 – K+1
C. F – Ne – Na+
D. H+ – H- – H
Water absorber used in combustion analysis is___________________?
A. 50% KOH
B. Lime water
C. CaCl2
D. Mg (CIO4)2
Equal masses of methane and oxygen are mixed in empty container at 250?(C) The fraction of total pressure exerted by oxygen is___________________?
A. one / seventeen
B. sixteen / seventeen
C. one / three
D. two / three
Only London dispersion forces are present among the_________________?
A. Molecules of water in liquid state
B. Atoms of helium in gaseous state at high temperature
C. Molecules of hydrogen chloride gas
D. Molecules of solid iodine
The type of filtering media used for filtration depending upon____________________?
A. Nature of reactants
B. Nature of crucible
C. Nature of product
D. Nature of precipitate
When CO2 is made to react with ethy1 magnesium iodide in dry ether followed by acid hydrolysis yields______________?
A. Carboxylic acid
B. Ethanoic acid
C. Propanoic acid
D. Butanoic acid
The most reactive allotropic form of phosphorus is________________?
A. White
B. Redox potential
C. Black
D. Violet
For a given process the heat changes at constant pressure (qp) and at constant volume (qv) are related to each other as___________________?
A. qp = qv
B. qp < qv
C. qp > qv
D. qp = qv / 2
Recent Comments