26 JEE Main 2023 d and f Block Elements previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2023 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.
Prolonged heating is avoided during the preparation of ferrous ammonium sulphate to
During the qualitative analysis of SO 3 2 - using dilute H 2 SO 4 , SO 2 gas is evolved which turns K 2 Cr 2 O 7 soluti…
A solution of CrO 5 in amyl alcohol has a....colour
In chromyl chloride, the number of d-electrons present on chromium is same as in (Given at no. of Ti   :   22…
In Chromyl chloride, the oxidation state of chromium is + ___________.
The set of correct statements is: (i) Manganese exhibits + 7 oxidation state in its oxide. (ii) Ruthenium and Osmium ex…
In ammonium - phosphomolybdate, the oxidation state of Mo is + _ _ _ _ _ _ _
Which element is not present in Nessler’s reagent?
Nd 2 + = _ _ _ _ _ _
K 2 Cr 2 O 7 paper acidified with dilute H 2 SO 4 turns green when exposed to
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