EASY
JEE Main
IMPORTANT
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The additon of dilute to salt solution will give :
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Important Questions on The d- and f-Block Elements
MEDIUM
JEE Main
IMPORTANT
The number of electrons in the ground state electronic configuration of is ______ .(Integer answer)
EASY
JEE Main
IMPORTANT
The nature of oxides and is indexed as and type respectively. The correct set of and is:
EASY
JEE Main
IMPORTANT
Which one of the following lanthanoids does not form ? [ is lanthanoid metal]
MEDIUM
JEE Main
IMPORTANT
Dichromate ion is treated with base, the oxidation number of in the product formed is
EASY
JEE Main
IMPORTANT
Given below are two statements:
Statement I : can be used for oxidation of aldehydes and ketones.
Statement II : Aqueous solution of is a strong reducing agent. In the light of the above statements, choose the correct answer from the options given below:
MEDIUM
JEE Main
IMPORTANT
The total number of unpaired electrons present in $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{2}$ and $\left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right] \mathrm{Cl}_{3}$ is
MEDIUM
JEE Main
IMPORTANT
Number of electrons that Vanadium has in p-orbitals is equal to:
MEDIUM
JEE Main
IMPORTANT
Manganese has ability to disproportionate in acidic solution. The difference in oxidation states of two ions it forms in acidic solution is
