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The s-Block Elements

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Q JEE-MAIN 2021
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Barium carbonate...
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Q JEE MAIN 2021
The number of water molecules in gypsum, dead burnt plaster and plaster of paris, respectively are:
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Q JEE-MAIN 2021
Number of paramagnetic oxides among the following given oxides is __________.
$\mathrm{Li}_2 \mathrm{O}, \mathrm{CaO}, \mathrm{Na}_2 \mathrm{O}_2, \mathrm{KO}_2, \mathrm{MgO}$ and $\mathrm{K}_2 \mathrm{O}$
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Q JEE MAIN 2021
Number of paramagnetic oxides among the following given oxides is $\_\_\_\_$ $\mathrm{Li}_2 \mathrm{O}, \quad \mathrm{CaO}, \quad \mathrm{Na}_2 \mathrm{O}_2, \quad \mathrm{KO}_2$, MgO and $\mathrm{K}_2 \mathrm{O}$
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Q JEE MAIN 2021
The major component/ingredient of Portland Cement is :
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Q JEE MAIN 2019
The correct order of hydration enthalpies of alkali metal ions is
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Q JEE MAIN_2021
Match List - I with List II :
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Q JEE MAIN 2021
A s-block element $(M)$ reacts with oxygen to form an oxide of the formula $\mathrm{MO}_2$. The oxide is pale yellow in colour and paramagnetic. The...
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Q JEE MAIN 2021
Match List I with List II : Choose the correct answer from the options given...
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Q JEE MAIN 2021
Match List-I with List-II
Choose the correct answer from the options given below :
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