A. Mg P
C. Mg > A1
D. both B & C
Which order of ionization energy is correct_________________? Read More »
Chemistry Mcqs, MCQs / Q&A A. Isobars
B. Isomers
C. Isotopes
D. Isotropes
A. H+
B. H-
C. Cl-
D. All are stable
Which of the following ion is stable in aqueous solution ? Read More »
Chemistry Mcqs, Periodic Classification A. Group II-A
B. Group IV-A
C. Group VII-A
D. Group VI-A
An element has electronic conviguration 1s2 2s2 2p2. It belongs to__________________? Read More »
Chemistry Mcqs, Periodic Classification A. Alkali metal
B. Alkaline earth metal
C. Elements from Li to Ne
D. Halogens
The atomic radii decreases by increasing atomic number in________________? Read More »
Chemistry Mcqs, Periodic Classification A. The nature of its oxides
B. The charge on its ions
C. The formula of its oxide
D. Its number of isotopes
A. Cu Hg Au
B. Cu Ag Au
C. Ag Au Hg
D. Cu Fe Au
Which one of the following sets consists of all coinage metals ? Read More »
Chemistry Mcqs, Periodic Classification A. Both are electropositive
B. Similar outer most shell electronic configuration
C. Both form ionic compounds
D. All
A. Acidic
B. Amphoteric
C. Neutral
D. All of the above
Non-metals usually form _________________ oxides? Read More »
Chemistry Mcqs, Periodic Classification A. Lanthanides
B. Actinides
C. Rare earth metals
D. All
Inner transition elements are called _________________? Read More »
Chemistry Mcqs, Periodic Classification