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QJEE-Main 2022
While estimating the nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from 0.25 g of the compound neutralized 2.5 mL of...
JEE MainChemistryMedium
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QJEE MAIN 2022
Identify the major product A and B for the below given reaction sequence.
JEE MainChemistryMedium
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QJEE MAIN 2022
Given below are two statements. One is labeled as Assertion A and the other is labeled as Reason R. Assertion A : Energy of 2s...
JEE MainChemistryEasy
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QJEE MAIN 2022
Consider the above reaction and predict the major product.
JEE MainChemistryEasy
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QJEE MAIN 2022
Among the following marked proton of which compound shows lowest $\mathrm{pK}_{\mathrm{a}}$ value ?
JEE MainChemistryMedium
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QJEE MAIN 2022
Hydrolysis of which compound will give carbolic acid ?
JEE MainChemistryEasy
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QJEE-Main 2022
Among $\mathrm{Co}^{3+}, \mathrm{Ti}^{2+}, \mathrm{V}^{2+}$ and $\mathrm{Cr}^{2+}$ ions, one if used as a reagent cannot liberate $\mathrm{H}_2$ from dilute mineral acid solution, its spin-only magnetic moment...
JEE MainPhysicsHard
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QJEE MAIN 2022
Given below are two statements. Statement I : $\mathrm{O}_{2, a, \mathrm{Cu}^{2+}}$ and $\mathrm{Fe}^{3+}$ are weakly attracted by magnetic field and are magnetized in the same...
JEE MainChemistryEasy
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QJEE MAIN 2022
If $\mathrm{O}_2$ gas is bubbled through water at 303 K , the number of millimoles of $\mathrm{O}_2$ gas that dissolve in 1 litre of water...
JEE MainChemistryEasy
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QJEE MAIN 2022
Which of the following is not an example of benzenoid compound ?
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