JEE Main

D and F Block Elements

Chemistry

(Past Years Questions)

MCQ (Single Correct Answer)

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The transition metal ions responsible for color in ruby and emerald are, respectively :
JEE Main 2016 (Online) 10th April Morning Slot
Which one of the following species is stable in aqueous solution ?
JEE Main 2016 (Online) 9th April Morning Slot
Which of the following compounds is metallic and ferromagnetic ?
JEE Main 2016 (Offline)
Which of the following compounds is not colored yellow?
JEE Main 2015 (Offline)
Match the catalysts to the correct processes : .tg {border-collapse:collapse;border-spacing:0;border:none;border-color...
JEE Main 2015 (Offline)
Which series of reactions correctly represents chemical relations related to iron and its compound ?
JEE Main 2014 (Offline)
Which of the following arrangements does not represent the correct order of the property stated against it ?
JEE Main 2013 (Offline)
Four successive members of the first row transition elements are listed below with atomic numbers. Which one of them is ...
JEE Main 2013 (Offline)
Iron exhibits + 2 and +3 oxidation states. Which of the following statements about iron is incorrect ?
AIEEE 2012
In context of the lanthanoids, which of the following statements is not correct ?
AIEEE 2011
The outer electron configuration of $$Gd$$ (Atomic No. $$64$$) is :
AIEEE 2011
In context with the transition elements, which of the following statements is incorrect ?
AIEEE 2009
Knowing that the Chemistry of lanthanoids (Ln) is dominated by its +3 oxidation state, which of the following statements...
AIEEE 2009
Larger number of oxidation states are exhibited by the actinoids than those by the lanthanoids, the main reason being
AIEEE 2008
Amount of oxalic acid present in a solution can be determined by its titration with $$KMn{O_4}$$ solution in the presen...
AIEEE 2008
Identify the incorrect statement among the following
AIEEE 2007
The actinoids exhibits more number of oxidation states in general than the lanthanoids. This is because
AIEEE 2007
The stability of dihalides of $$Si,Ge,Sn$$ and $$Pb$$ increases steadily in the sequence
AIEEE 2007
Lanthanoid contraction is caused due to
AIEEE 2006
A metal, $$M$$ forms chlorides in its $$+2$$ and $$+4$$ oxidation states. Which of the following statements about these ...
AIEEE 2006
The lanthanide contraction is responsible for the fact that
AIEEE 2005
Which of the following factors may be regarded as the main cause of lanthanide contraction?
AIEEE 2005
The oxidation state of chromium in the final product formed the reaction between $$K{\rm I}$$ and acidified potassium di...
AIEEE 2005
Heating mixture of $$C{u_2}O$$ and $$C{u_2}S$$ will give
AIEEE 2005
Calomel $$\left( {H{g_2}C{l_2}} \right)$$ on reaction with ammonium hydroxide gives
AIEEE 2005
Cerium (Z = 58) is an important member of the lanthanoids. Which of the following statements about cerium is incorrect?
AIEEE 2004
Of the following outer electronic configurations of atoms, the highest oxidation state is achieved by which one of them?...
AIEEE 2004
The soldiers of Napolean army while at Alps during freezing winter suffered a serious problem as regards to the tin butt...
AIEEE 2004
What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?
AIEEE 2003
Which one of the following nitrates will leave behind a metal on strong heating?
AIEEE 2003
The atomic numbers of vanadium (V), Chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23, 24, 25 and 26. Whic...
AIEEE 2003
The radius of La3+ (Atomic number of La = 57) is 1.06 Å. Which one of the following given values will be closest to the ...
AIEEE 2003
A red solid is insolvable in water. However it becomes soluble if some $$K{\rm I}$$ is added to water. Heating the red s...
AIEEE 2003
When KMnO4 acts as an oxidising agent and ultimately forms [MnO4]-2, MnO2, Mn2O3, Mn+2 then the number of electrons tran...
AIEEE 2002
Which of the following ions has the maximum magnetic moment ?
AIEEE 2002
Most common oxidation states of Ce (cerium) are
AIEEE 2002
How do we differentiate between Fe3+ and Cr3+ in group III?
AIEEE 2002
The type isomerism present in nitropentammine chromium $$\left( {{\rm I}{\rm I}{\rm I}} \right)$$ chloride is
AIEEE 2002

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