7 JEE Main 2003 d and f Block Elements previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2003 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.
A red solid is insoluble in water. However it becomes soluble if some KI is added to water. Heating the red solid in a…
Which one of the following is an amphoteric oxide?
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…
The number of d-electrons retained in Fe²⁺ (At.no.of Fe=26 ) ion is
A reduction in atomic size with increase in atomic number is a characteristic of element of
What would happen when a solution of potassium chromate is treated with an excess of dilute nitric acid?
The atomic numbers of vanadium (V), Chromium (Cr), manganese (Mn) and iron (Fe) are respectively 23 , 24,25 and 26 . Wh…