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d and f Block Elements

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Q JEE MAIN 2024
The orange colour of $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ and purple colour of $\mathrm{KMnO}_4$ is due to
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Q JEE MAIN 2024
Which of the following statements are correct about Zn,Cd and Hg ?
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Q JEE MAIN 2024
Which of the following acts as a strong reducing agent? (Atomic number : $\mathrm{Ce}=58, \mathrm{Eu}=63, \mathrm{Gd}= 64, \mathrm{Lu}=71$ )
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Q JEE MAIN 2024
Choose the correct option having all the elements with d^10 electronic configuration from the following:
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Q JEE MAIN 2024
Given below are two statements :
Statement (I): In the Lanthanoids, the formation of $\mathrm{Ce}^{+4}$ is favoured by its noble gas configuration.
Statement (II): $\mathrm{Ce}^{+4}$...
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Q JEE MAIN 2023
If $A=\frac{1}{5!6!7!}\left[\begin{array}{lll}5! & 6! & 7! \\ 6! & 7! & 8! \\ 7! & 8! & 9!\end{array}\right]$, then $|\operatorname{adj}(\operatorname{adj}(2 A))|$ is equal to :
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Q JEE MAIN 2025
The correct decreasing order of spin only magnetic moment values (BM) of $\mathrm{Cu}^{+}, \mathrm{Cu}^{2+}, \mathrm{Cr}^{2+}$ and $\mathrm{Cr}^{3+}$ ions is :
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Q JEE MAIN 2025
The incorrect relationship in the following pairs in relation to ionisation enthalpies is :
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Q JEE MAIN 2025
Among, and Cu , identify the element with highest enthalpy of atomisation. The spin only magnetic moment value of that element in its +2 oxidation...
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Q JEE MAIN 2025
Given below are two statements:
Statement I : $\mathrm{CrO}_3$ is a stronger oxidizing agent than $\mathrm{MoO}_3$
Statement II: $\mathrm{Cr}(\mathrm{VI})$ is more stable than $\mathrm{Mo}(\mathrm{VI})$
In...
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