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QJEE MAIN 2023
The density of alkali metals is in the order
JEE MainChemistryMedium
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QJEE MAIN 2023
Given below are two statements: Statement I: Lithium and Magnesium do not form superoxide Statement II: The ionic radius of $\mathrm{Li}^{+}$is larger than ionic radius...
JEE MainChemistryEasy
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QJEE MAIN 2023
The compound which does not exist is:
JEE MainChemistryEasy
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QJEE MAIN 2023
What is the purpose of adding gypsum to cement?
JEE MainChemistryEasy
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QJEE MAIN 2023
Lime reacts exothermally with water to give A which has low solubility in water. Aqueous solution of ' $A$ ' is often used for the...
JEE MainChemistryEasy
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QJEE MAIN 2023
The setting time of Cement is increased by adding
JEE MainChemistryMedium
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QJEE MAIN 2023
Reaction of BeQ with ammonia and hydrogen fluoride gives 'A' which on thermal decomposition gives $\mathrm{BeF}_2$ and $\mathrm{NH}_4 \mathrm{~F}$. What is ' A ' ?
JEE MainChemistryEasy
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QJEE MAIN 2023
Match List I with List II.
Choose the correct answer from the options given below :
JEE MainChemistryEasy
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QJEE-Main_2023
Lithium aluminium hydride can be prepared from the reaction of
JEE MainChemistryEasy
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QJEE MAIN 2023
Choose the correct statement(s): A. Beryllium oxide is purely acidic in nature. B. Beryllium carbonate is kept in the atmosphere of CO2. C. Beryllium sulphate...
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