JEE Questions for Chemistry The D And F Block Elements Quiz 3 - MCQExams.com

Which of the following transition metal ions will have definite value of magnetic moment ?
  • Sc3+
  • Ti3+
  • Cu3+
  • Zn3+
Which of the following compound is expected to be coloured ?
  • Ag2SO4
  • CuF2
  • MgF2
  • CuCl
Which of the following compounds volatilises on heating ?
  • MgCl2
  • HgCl2
  • CaCl2
  • FeCl3
Among the following the compound that is both paramagnetic and coloured is
  • K2Cr2O7
  • (NH4)2[TiCl6 ]
  • VOSO4
  • K3[Cu(CN)4]
Corrosive sublimate (HgCl2 ) can be used to distinguish between
  • formic acid and acetic acid
  • acetaldehyde and butanone
  • formaldehyde and propanone
  • All of the above
Which of the following group of transition metals is called coinage metals ?
  • Cu, Ag, Au
  • Ru, Rh, Pd
  • Fe, Co, Ni
  • Os, Ir, Pt
The atomic numbers of vanadium (V), chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23, 24, 25 and 26. Which one of these may be expected to have the highest second ionisation enthalpy ?
  • V
  • Cr
  • Mn
  • Fe
Formation of coloured solution is possible when metal ion in the compound contains
  • paired electrons
  • lone pair of electrons
  • unpaired electrons
  • None of these
Which of the following ions has a magnetic moment of 5.93 BM?
(Atomic number V = 23, Cr = 24, Mn = 25, Fe =
  • Mn2+
  • Fe2+
  • Cr2+
  • V3+
  • Cr3+
When hydrogen peroxide is added to acidified potassium dichromate, a blue colour is produced due to formation of
  • CrO3
  • Cr2 O3
  • CrO5

  • Chemistry-The d and f Block Elements-8381.png

  • Chemistry-The d and f Block Elements-8382.png
Which of the following is philosopher's wool ?
  • ZnO
  • HgO
  • Ag2O
  • CuO
Ferrous sulphate (FeSO4 ∙ 7H2O) is known as
  • vermillion
  • Glauber's salt
  • green vitriol
  • Mohr's salt
The magnetic moment of Cu2+ ion is
  • 2.73
  • zero
  • 1.93
  • 1.73
The magnetic moment of a transition metal ion is 3.87 BM. The number of unpaired electrons present in it is
  • 2
  • 3
  • 4
  • 5
Monel metal is an alloy of
  • Cu, Ni, Fe, Mn
  • Cu, Sn, Zn
  • Cu, Sn, P
  • Cu, Zn
Which metal gives hydrogen gas on heating with hot concentrated alkali ?
  • Ag
  • Ni
  • Zn
  • Cu
Which of the following is used as purgative?
  • HgS
  • Hg2Cl2
  • HgCl2
  • ZnSO4
Gun metal is
  • Cu + Zn
  • Cu + Sn + Zn
  • Cu + Sn
  • Zn + Sn
KI and CuSO4 solutions on mixing produce
  • Cu2I2 + K2 SO4
  • Cu2I2 + I2 + K2SO4
  • CuI2 + K2 SO4
  • CuI2 + I2 +K2 SO4
Which do not decolourise KMnO4 aqueous solution?

  • Chemistry-The d and f Block Elements-8384.png
  • 2)
    Chemistry-The d and f Block Elements-8385.png

  • Chemistry-The d and f Block Elements-8386.png

  • Chemistry-The d and f Block Elements-8387.png
Bronze is a mixture of
  • Pb + Sn
  • Cu + Sn
  • Cu + Zn
  • Pb + Zn
In photography we use
  • AgI
  • NH3
  • AgCl
  • AgBr
Philosopher's wool on heating with BaO at 1100℃ produce
  • Ba + ZnCl2
  • BaCdO2
  • BaZnO2
  • BaO2 + Zn
A white precipitate is formed on adding KI to CuSO4 solution. It is of
  • Cu2I2
  • CuI2
  • Cu2 S
  • Cu2SO4
The 3d-block element that exhibits maximum number of oxidation states is
  • Sc
  • Ti
  • Mn
  • Zn
Among the following ions (hydrated), the colourless metal ion is
  • Cu+
  • Cu2+
  • Fe2+
  • Mn2+
Which of the following is used as indelibleink ?
  • Aqueous CuSO4 solution
  • Aqueous AgNO3 solution
  • Aqueous NaCl solution
  • Aqueous NaOH solution
For d-block elements the first ionisation potential is of the order
  • Zn > Fe > Cu > Cr
  • Sc = Ti < V = Cr
  • Zn < Cu < Ni < Co
  • V > Cr > Mn > Fe
Which of the following is amphoteric ?
  • V2O3
  • CuO
  • V2O5
  • NiO
Which of the following is deliquescent ?
  • ZnCl2
  • Hg2Cl2
  • HgCl2
  • CdCl2
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