28 JEE Main 2021 d and f Block Elements previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2021 previous-year questions from the d and f Block Elements chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the d and f Block Elements chapter hub.
Which one of the following lanthanides exhibits + 2 oxidation state with diamagnetic nature ? (Given Z for Nd = 60 , Yb…
Number of electrons present in 4 f orbital of Ho 3 + ion is ________ (Given Atomic No. of Ho =67)
The major components of German Silver are :
The electrode potential of M 2 + / M of 3 d-series elements shows positive value for?
In the structure of the dichromate ion, there is a :
What is the correct order of the following elements with respect to their density?
Identify the element for which electronic configuration in + 3 oxidation state is [ Ar ] 3   d 5 :
Given below are two statements: Statement I : CeO 2 can be used for oxidation of aldehydes and ketones. Statement II :…
The set having ions which are coloured and paramagnetic both is -
In which of the following pairs, the outermost electronic configuration will be the same?
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