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.Management Sciences
Category: Chemistry Mcqs
Which of the following way in used for classification of chromatography ?
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A. Shape
B. Phase
C. Mechanism
D. All
In the production of wrought iron Mg Si and P are removed in the form of___________________?
A. oxides
B. silicates
C. slag
D. carbonates
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
Which of the following statement is correct ?
A. size of Cl atoms > Cl- ion
B. size of Na+ ion < Na atom
C. size of Na atom < Na+ ion
D. Cl- < Na+
Which one of the following is not the mono isotopic element ?
A. arsenic
B. uranium
C. iodine
D. nickel
The phenomenon in which a compound exists in two or more crystalline forms is called ________________?
A. Isomorphism
B. Polymorphism
C. Anisotropy
D. Allotropy
The halogen having highest electron affinity is_____________________?
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine
The scientist who did not contribute in the construction of periodic table ?
A. Al-Razi
B. Moseley
C. Dobereiner
D. Democritus
Orbitals of same energy produced after mixing of orbitals of different energy are called __________________?
A. Degenerate orbitals
B. Generate orbitals
C. Hybrid orbitals
D. Zeeman orbitals
Angle of deflection was studied by________________?
A. Hitorff
B. Stoney
C. William Crookes
D. J.Perrin
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