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The d & f Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements3 Marks
Question
Match the properties given in Column I with the metals given in Column II.

 
Column I (Property)
 
Column II (Metal)
(i)
An element which can show +8 oxidation state
(a)
Mn
(ii)
3d block element that can show upto +7 oxidation state
(b)
Cr
(iii)
3d block element with highest melting point
(c)
Os
   
(d)
Fe

 

✓

Answer

 
Column I (Property)
 
Column II (Metal)
(i)
An element which can show +8 oxidation state
(c)
Os
(ii)
3d block element that can show upto +7 oxidation state
(a)
Mn
(iii)
3d block element with highest melting point
(b)
Cr

Explanation:

  1. Osmium is an element which show +8 oxidation state.
  2. 3d block element that can show up to +7 oxidation state is manganese.
  3. 3d block element with highest melting point is chromium.

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