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QJEE MAIN 2020
Match the following compounds (Column-I) with their uses (Column-II)
JEE MainChemistryEasy
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QJEE MAIN 2020
When gypsum is heated to 393 K, it forms
JEE MainChemistryEasy
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QJEE MAIN 2019
A hydrated solid X on heating initially gives a monohydrated compound Y. Y upon heating above 373 K leads to an anhydrous white powder Z....
JEE MainChemistryEasy
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QJEE Main 2019
The metal used for making X-ray tube window is
JEE MainChemistryEasy
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QJEE MAIN 2020
On combustion of Li, Na and K in excess of air, the major oxides formed, respectively, are
JEE MainChemistryEasy
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QJEE MAIN 2020
Among the statements (a)-(d), the correct ones are (a) Lithium has the highest hydration enthalpy among the alkali metals. (b) Lithium chloride is insoluble in...
JEE MainChemistryEasy
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QJEE MAIN 2020
An alkaline earth metal ‘M’ readily forms water soluble sulphate and water insoluble hydroxide. Its oxide MO is very stable to heat and does not...
JEE MainChemistryMedium
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QJEE MAIN 2020
5 g of zinc is treated separately with an excess of (a) Dilute hydrochloric acid and (b) Aqueous sodium hydroxide. The ratio of the volumes...
JEE MainChemistryEasy
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QJEE MAIN 2019
atch the following items in column I with the corresponding items in column II.
JEE MainPhysicsEasy
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QJEE MAIN 2021
A metal (A) on heating in nitrogen gas gives compound B. B on treatment with $\mathrm{H}_2 \mathrm{O}$ gives a colourless gas which when passed through...
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