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d and f Block Elements

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Q JEE MAIN 2022
2.0 g of H2 gas is adsorbed on 2.5 g of platinum powder at 300 K and 1 bar pressure. The volume of the gas...
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Q JEE MAIN 2022
The electronic configuration of Pt (atomic number 78) is:
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Q JEE MAIN 2022
Which one of the lanthanoids given below is the most stable in divalent form?
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Q JEE MAIN 2024
In the reaction of potassium dichromate, potassium chloride and sulfuric acid (conc.), the oxidation state of the chromium in the product is (+) _______.
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Q JEE-Main 2022
Match List – I with List – II Choose the most appropriate answer from the options given below:
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Q JEE MAIN 2024
Number of moles of $\mathrm{H}^{+}$ions required by 1 mole of $\mathrm{MnO}_4^{-}$to oxidise oxalate ion to $\mathrm{CO}_2$ is $\_\_\_\_$
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Q JEE MAIN 2022
Match List-I with List-II Choose the correct answer from the options given below.
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Q JEE MAIN 2022
Given are two statements one is labelled as Assertion A and other is labelled as Reason R.
Assertion A :Magnesium can reduce $\mathrm{Al}_2 \mathrm{O}_3$ at...
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Q JEE MAIN 2024
Given below are two statements:
Statement (I): Dimethyl glyoxime forms a six membered covalent chelate when treated with $\mathrm{NiCl}_2$ solution in presence of $\mathrm{NH}_4 \mathrm{OH}$.
...
JEE Main Chemistry Medium
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Q JEE MAIN 2024
Choose the correct statements from the following
A. $\mathrm{Mn}_2 \mathrm{O}_7$ is an oil at room temperature
B. $\mathrm{V}_2 \mathrm{O}_4$ reacts with acid to give $\mathrm{VO}_2^{2+}$
...
JEE Main Chemistry Hard
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