d and f block elements Questions
7 Questions available
#1
The colour of light absorbed by an aqueous solution of CuSO4 is
Medium
#2
The order of stability of complexes of ion Cu+2, Ni+2, Mn+2 and Fe+2 decreases in the order -
Medium
#3
The correct order of basicity of oxides of vanadium is
Easy
#4
Which of the following statement is correct :
Medium
#5
Given below are two statements Statement I: Sc exhibits only +3 oxidation state Statement II: Mn exhibits all the oxidation states from +2 to +7 In the light of above statements, choose the most appropriate answer from the options given below.
Easy
#6
Which of the following compounds is not coloured:
Easy
#7
Which one of the following transition elements does not exhibit variable oxidation state ?
Easy