In modern periodic table all the leements are arranged in ascending order of__________________?
A. Valency
B. Atomic mass
C. Atomic number
D. Valence electrons
Chemistry Mcqs
Elements with similar chemical properties appear in the_________________?
Elements with similar chemical properties appear in the_________________?
A. Same family
B. Same period
C. p block elements
D. Right upper corner
Concept of Triads was introduced by_______________?
Concept of Triads was introduced by_______________?
A. Dobereiner
B. Newland
C. Mendeleev
D. Al-Razi
Periodic table provides a basic framework to study elements with respect to their__________________?
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
Which of the following will not form crystalline structure with opporitely charged ions_________________?
Which of the following will not form crystalline structure with opporitely charged ions_________________?
A. H+
B. H-
C. Mg2+
D. Ca2+
Which of the p-block elements are not representative elements ?
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)
Which set of elements is listed in order of increasing ionization energy ?
Which set of elements is listed in order of increasing ionization energy ?
A. Sb < As < S < P < Cl
B. Cl < Sb < P < As < S
C. As < Cl < P < S < Sb
D. Sb < As < Cl < S < P
Elements in the same vertical group of the periodic table have same_______________?
Elements in the same vertical group of the periodic table have same_______________?
A. Number of valence electrons
B. Atomic number
C. Atomic mass
D. Atomic volume
For determining the order of reaction we use__________________?
For determining the order of reaction we use__________________?
A. Refractometric method
B. Dilatometric method
C. Optical activity method
D. Half life method
End name of enzyme is___________________?
End name of enzyme is___________________?
A. yl
B. ase
C. one
D. al