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d and f Block Elements

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Q JEE MAIN 2024
Number of colourless lanthanoid ions among the following is…. Eu^(3+),Lu^(3+),Nd^(3+),La^(3+),Sm^(3+)
JEE Main Chemistry Medium
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Q JEE MAIN 2024
The number of white coloured salts among the following is (A) SrSO_4 (B) Mg(NH_4 ) PO_4 (c) BaCrO_4 (D) Mn(OH)_2 (E) PbSO_4 (F) PbCrO_4 (G)...
JEE Main Chemistry Hard
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Q JEE MAIN 2024
Identify the incorrect statements regarding primary standard of titrimetric analysis (A) It should be purely available in dry form. (B) It should not undergo chemical...
JEE Main Chemistry Medium
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Q JEE MAIN 2024
Given below are two statements : Statement (I) : Potassium hydrogen phthalate is a primary standard for standardisation of sodium hydroxide solution. Statement (II) :...
JEE Main Chemistry Medium
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Q JEE MAIN 2024
The electronic configuration of $\mathrm{Cu}($ □ II) is $3 \mathrm{~d}^9$ whereas that of $\mathrm{Cu}(\mathrm{I})$ is $3 \mathrm{~d}^{10}$. Which of the following is correct?
JEE Main Chemistry Easy
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Q JEE MAIN 2024
Consider the following reaction $\mathrm{MnO}_2+\mathrm{KOH}+\mathrm{O}_2 \rightarrow \mathrm{~A}+\mathrm{H}_2 \mathrm{O}$ Product ' $A$ ' in neutral or acidic medium disproportionate to give products ' $B$ ' and...
JEE Main Chemistry Medium
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Q JEE MAIN 2024
Among $\mathrm{CrO}, \mathrm{Cr}_2 \mathrm{O}_3$ and $\mathrm{CrO}_3$, the sum of spin-only magnetic moment values of basic and amphoteric oxides is $\_\_\_\_$ $10^{-2} \mathrm{BM}$ (nearest integer).
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Q JEE MAIN 2024
The spin only magnetic moment value of the ion among Ti^(2+),V^(2+),Co^(3+) and Cr^(2+), that acts as strong oxidising agent in aqueous solution is BM (Near...
JEE Main Chemistry Hard
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Q JEE MAINS 2024
The element which shows only one oxidation state other than its elemental form is :
JEE Main Chemistry Easy
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Q JEE-Main 2024
Iron (III) catalyses the reaction between iodide and persulphate ions, in which A. $\mathrm{Fe}^{3+}$ oxidises the iodide ion B. $\mathrm{Fe}^{3+}$ oxidises the persulphate ion C....
JEE Main Chemistry Medium
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