A. Flrorine
B. Chlorine
C. Bromine
D. Iodine
Among halogens the highest boiling point is of___________________? Read More »
Chemistry Mcqs, Periodic Classification A. Metallic character
B. Electronegativity
C. Oxidizing power
D. Tendency to get reduced
Which of the following always increases on going from top to bottom in a group ? Read More »
Chemistry Mcqs, Periodic Classification A. Group IA
B. Group IB
C. Group VIIA
D. Group VIII
A. O-2
B. H+
C. Cl-
D. Na+
Which of the following cannot exist in solution_________________? Read More »
Chemistry Mcqs, Periodic Classification A. Cr
B. Mn
C. Sn
D. O
Which one of the following element has highest oxidation state in its compounds ? Read More »
Chemistry Mcqs, Periodic Classification A. MnO < MnO2 < Mn2O7
B. Mn2O7 > MnO2 > MnO
C. MnO2 > MnO > Mn2O7
D. MnO2 > Mn2O7 > MnO
True increasing order of acidity of the oxides of Mn is_________________? Read More »
Chemistry Mcqs, Periodic Classification A. Na+
B. K+
C. Mg+2
D. Ca+2
Which of the following possesses maximum hydration energy ? Read More »
Chemistry Mcqs, Periodic Classification A. Increase
B. Decrease
C. Remain constant
D. No regular trend
Melting points of VII-A group elements down the group ____________________? Read More »
Chemistry Mcqs, Periodic Classification A. Atom will lose electron easily
B. Atom will gain electron easily
C. Atom may form di-positive ion
D. The reason is unknown
Higher value of electron affinity means__________________? Read More »
Chemistry Mcqs, Periodic Classification A. Increases
B. Decreases
C. Can not be predicted
D. Remains constant
Shielding effect across the period_________________? Read More »
Chemistry Mcqs, Periodic Classification