13 JEE Main 2019 d and f Block Elements previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2019 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.
The transition elements that has the lowest enthalpy of atomisation is:
The pair that has similar atomic radii is:
The lanthanide ion that would show colour is:
A 4 KOH, O₂ (Green)2 ~B+2 H₂ O B 4 HCl ( Purple )2 C+MnO₂+2 H₂ O 2 C H₂ O, KI 2 ~A+KOH+D In the above sequence of react…
The metal that gives hydrogen gas upon treatment with both the acid as well as the base is
The maximum number of possible oxidation states of actinoids are shown by:
Thermal decomposition of a Mn compound X at 513   K results in compound Y , M n O 2 and a gaseous product. M n O 2…
Consider the hydrated ions of T i 2 + ,   V 2 + ,   T i 3 + and S c 3 + . The correct order of their spin-onl…
The effect of lanthanoid contraction in the lanthanoid series of elements by and large means
The number of water molecules not coordinated to copper ion directly in C u S O 4 · 5 H 2 O , is
Log in to unlock the full list, track what you've solved, and practice on the TCS iON-style CBT player. It's free.