Valence NEET Questions

Inorganic Chemistry - Classification of Elements and Periodicity in Properties

Valence MCQ Questions


1.
Valency of an element is generally defined as its:
A.
Atomic mass
B.
Combining capacity with atoms of other elements
C.
Atomic radius
D.
Melting point
😑 View Answer Rough Work Error
ANSWER :
B. Combining capacity with atoms of other elements
2.
The valency of an element is most directly related to the number of electrons present in its:
A.
Penultimate shell only
B.
Outermost (valence) shell
C.
Innermost shell (K shell)
D.
Nucleus
😑 View Answer Rough Work Error
ANSWER :
B. Outermost (valence) shell
3.
The electrons present in the outermost shell of an atom, which are primarily responsible for its chemical bonding behaviour, are called:
A.
Core electrons
B.
Delocalized electrons
C.
Valence electrons
D.
Nuclear electrons
😑 View Answer Rough Work Error
ANSWER :
C. Valence electrons
4.
In Mendeleev's periodic table, the general formula of the hydride formed by elements of Group IV was:
A.
RH₃
B.
RHâ‚„
C.
RHâ‚‚
D.
RH
😑 View Answer Rough Work Error
ANSWER :
B. RHâ‚„
5.
One of the significant limitations of Mendeleev's periodic table, related to valency, was that elements showing variable valency (such as some transition metals) could not be assigned:
A.
Any physical state
B.
A fixed and unambiguous position based on valency alone
C.
Any chemical symbol
D.
Any atomic mass at all
😑 View Answer Rough Work Error
ANSWER :
B. A fixed and unambiguous position based on valency alone
6.
The modern periodic law states that the physical and chemical properties of elements, including valency, are a periodic function of their:
A.
Atomic number
B.
Density
C.
Number of neutrons
D.
Atomic mass
😑 View Answer Rough Work Error
ANSWER :
A. Atomic number