A. Cu Hg Au
B. Cu Ag Au
C. Ag Au Hg
D. Cu Fe Au
Periodic Classification
Which of the p-block elements are not representative elements ?
A. Alkali metals (I-A)
B. Group-14 elements (IV-A)
C. Group-18 elements (VIII-A)
D. Halogens (VII-A)
Inner transition elements are called _________________?
A. Lanthanides
B. Actinides
C. Rare earth metals
D. All
Many properties of an element and its compounds can be predicted from the position of the element in the periodic table. What property could not be predicted in this way ?
A. The nature of its oxides
B. The charge on its ions
C. The formula of its oxide
D. Its number of isotopes
Melting points of VII-A group elements down the group ____________________?
A. Increase
B. Decrease
C. Remain constant
D. No regular trend
Iodine is solid due to_________________?
A. Strong covalent bond
B. Large value of dipole moment
C. High polarizability
D. Strong hydrogen bonding
Periodic table provides a basic framework to study elements with respect to their__________________?
A. Physical properties
B. Chemical properties
C. Properties of their compounds
D. All
Noble gases are named so because they are__________________?
A. less reactive
B. Zero group elements
C. Having completely filled valence shell
D. All
Which of the following will not form crystalline structure with opporitely charged ions_________________?
A. H+
B. H-
C. Mg2+
D. Ca2+
Which of the following cannot exist in solution_________________?
A. O-2
B. H+
C. Cl-
D. Na+
