The s-Block Elements

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Q JEE MAIN 2022

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : LiF is...

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Q JEE MAIN 2022

Given below are two statements:
Statement I : The chlorides of Be and Al have Cl-bridged structure. Both are soluble in organic solvents and act...

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Q JEE MAIN 2022

The correct order of density is

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Q JEE MAIN 2022

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : LiF is...

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Q JEE MAIN 2022

Which of the following statement is incorrect ?

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Q JEE MAIN 2022

An element A of group 1 shows similarity to an element B belonging to group 2. If A has maximum hydration enthalpy in group 1...

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Q JEE MAIN 2022

Portland cement contains 'X' to enhance the setting time. What is 'X'?

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Q JEE MAIN 2022

Lithium nitrate and sodium nitrate, when heated separately, respectively, give :

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Q JEE MAIN 2022

Statement I : An alloy of lithium and magnesium is used to make aircraft plates.
Statement II : The magnesium ions are important for cell–membrane...

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Q JEE MAIN 2022

Reaction of $\mathrm{BeCl}_2$ with $\mathrm{Li}_4 \mathrm{IH}_4$ gives :

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