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WorksheetsS. P. M. College Chemistry B. Sc II - Sem-IV
Total questions: 10
Worksheet time: 10mins
Which method is used for purifying nickel.
Comfact process
Hyber process
Mond process
All of the above
The general electronic configuration of first transition series is
(n-1)d1-10, ns1
(n-1)d1-10
(n-1)d1-10 , ns 0,1,2
(n-2)d1-10 , ns 0-2
which element show abnormal electronic configuration in first transition series element.
Ti
Cr
Cu
Cr & Cu
Transition elements are
Cobalt
Zinc
Aluminium
Chlorine
Oxidation state +2 is obtained by losing 2 electron from
2s
4s
2p
d
Elements found in d-block element of the periodic table are known as
Noble gases
Transition elements
Alkali
Acids
Any species can be reduced if the oxidation state is
Oxidized
gained
reduced
lost
Which of the following arrangements does not represent the correct order o the property stated against it?
V2+ < Cr+2 < Mn2+ < Fe+2 : paramagnetic behaviour
Ni2+ < Co+2 < Fe2+ < Mn+2 : ionic size
Co3+ < Fe3+ < Cr3+ < Sc 3+ : Stability in aqueous solution
Sc < Ti < Cr < Mn : Number of oxidation states
Among the following the coloured compound is
CuCl
K3 [Cu(CN)4]
CuF2
[Cu(CH3 CN)4]BF4
what is an ore?
A solid metal
A rock containing a metal combined with the other elements
An element
An object used to row a boat
