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NEET

d and f Block Elements

Chemistry

Previous Years Questions

MCQ (Single Correct Answer)

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Zr (Z = 40) and Hf (Z = 72) have similar atomic and ionic radii because of :
NEET 2021
Which of the following reactions is the metal displacement reaction? Choose the right option.
NEET 2021
The incorrect statement among the following is :
NEET 2021
Identify the incorrect statement.
NEET 2020 Phase 1
Match the metal ions given in Column I with the spin magnetic moments of the ions given in Column II and assign the corr...
NEET 2018
Which one of the following ions exhibits d-d transition and paramagnetism as well?
NEET 2018
The reason for greater range of oxidation states in actinoids is attributed to
NEET 2017
Name the gas that can readily decolourise acidified KMnO4 solution.
NEET 2017
HgCl2 and I2 both when dissolved in water containing I$$-$$ ions, the pair of species formed is ...
NEET 2017
The electronic configuration of Eu (Atomic No. 63), Gd (Atomic No. 64) and Tb (Atomic No.65) are
NEET 2016 Phase 1
Which one of the following statements is correct when SO2 is passed through acidified K2Cr2O7 solution? ...
NEET 2016 Phase 1
Which one of the following statements related to lanthanoids is incorrect?
NEET 2016 Phase 2
Which of the following processes does not involve oxidation of iron?
AIPMT 2015 Cancelled Paper
Because of lanthanoid contraction, which of the following pairs of elements have nearly same atomic radii? (Numbers in...
AIPMT 2015 Cancelled Paper
Magnetic moment 2.84 B.M. is given by (At. nos. Ni = 28, Ti = 22, Cr = 24, Co = 27)
AIPMT 2015 Cancelled Paper
Gadolinium belongs to 4f series. Its atomic number is 64. Which of the following is the correct electronic configuration...
AIPMT 2015
Assuming complete ionisation, same moles of which of the following compounds will require the least amount of acidified ...
AIPMT 2015
Reason of lanthanoid contraction is
AIPMT 2014
The reaction of aqueous KMnO4 with H2O2 in acidic conditions gives
AIPMT 2014
Magnetic moment 2.83 BM is given by which of the following ions? (At. nos. Ti = 22, Cr = 24, Mn = 25, Ni = 28)
AIPMT 2014
Sc (Z = 21) is a transition element but Zn (Z = 30) is not because
NEET 2013 (Karnataka)
Which of the following statements about the interstitial compounds is incorrect?
NEET 2013
Which of the following lanthanoid ions is diamagnetic? (At. nos. Ce = 58, Sm = 62, Eu = 63, Yb = 70)
NEET 2013
Which of the following exhibits only + 3 oxidation state?
AIPMT 2012 Mains
Identify the alloy containing a non-metal as a constituent in it.
AIPMT 2012 Prelims
The catalytic activity of transition metals and their compounds is ascribed mainly to
AIPMT 2012 Mains
Which of the statements is not true?
AIPMT 2012 Prelims
Four successive members of the first series of the transition metals are listed below. For which one of them the standar...
AIPMT 2012 Mains
Which one of the following does not correctly represent the correct order of the property indicated against it?
AIPMT 2012 Mains
Acidified K2Cr2O7 solution turns green when Na2SO3 is added to it. This is due to the formation of ...
AIPMT 2011 Prelims
For the four successive transition elements (Cr, Mn, Fe and Co), the stability of + 2 oxidation state will be there in w...
AIPMT 2011 Prelims
Which of the following ions has electronic configuration [Ar]3d6? (At. nos. Mn = 25, Fe = 26, Co = 27, Ni = 28)...
AIPMT 2010 Prelims
Which of the following oxidation states is the most common among the lanthanoids?
AIPMT 2010 Mains
Match List I (substances) with List II (processes) employed in the manufacture of the substances and select the correct ...
AIPMT 2010 Mains
Which of the following pairs has the same size?
AIPMT 2010 Prelims
Which of the following ions will exhibit colour in aqueous solutions?
AIPMT 2010 Prelims
Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation st...
AIPMT 2009
The correct order of decreasing second ionisation enthalpy of Ti(22), V(23), Cr(24) and Mn(25) is
AIPMT 2008
Identify the incorrect statement among the following:
AIPMT 2007
Which one of the following ions is the most stable in aqueous solution? (At. No. Ti = 22, V = 23, Cr = 24, Mn = 25)
AIPMT 2007
Copper sulphate dissolves in excess of KCN to give
AIPMT 2006
More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is
AIPMT 2006
In which of the following pairs are both the ions coloured in aqueous solution? (At. no. : Sc = 21, Ti = 22, Ni = 28, ...
AIPMT 2006
Four successive members of the first row transition elements are listed below with their atomic numbers. Which one of th...
AIPMT 2005
The aqueous solution containing which one of the following ions will be colourless? (Atomic number : Sc = 21, Fe = 26,...
AIPMT 2005
The number of moles of KMnO4 reduced by one mole of KI in alkaline medium is
AIPMT 2005
More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is
AIPMT 2005
lanthanoids are
AIPMT 2004
Among the following series of transition metal ions, the one where all metal ions have 3d2 electronic configuration is ...
AIPMT 2004
The correct order of ionic radii of Y3+, La3+, Eu3+ and Lu3+ is (Atomic nos. Y = 39, La = 57, Eu = 63, Lu = 71)...
AIPMT 2003
The basic character of the transition metal monoxides follows the order (Atomic no's. Ti = 22, V = 23, Cr = 24, Fe = 26)...
AIPMT 2003
Which one of the following characteristics of the transition metals is associated with their catalytic activity?
AIPMT 2003
Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because
AIPMT 2002
An atom has electronic configuration 1s2 2s2 2p6 3s2 3p6 3d3 4s2, you will place it in ...
AIPMT 2002
Which of the following shows maximum number of oxidation states?
AIPMT 2002
General electronic configuration of lanthanides is
AIPMT 2002
The most convenient method to protect the button of ship made of iron is
AIPMT 2001
Which of the following statement is not correct?
AIPMT 2001
Which of the following shows maximum number of oxidation states?
AIPMT 2000
Which ion is colourless?
AIPMT 2000

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