EASY
JEE Main
IMPORTANT
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The single largest industrial application of dihydrogen is:

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Important Questions on The p-Block Elements

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JEE Main
IMPORTANT
Which one of the following gases is reported to retard photosynthesis?
EASY
JEE Main
IMPORTANT
The set in which compounds have different nature is:
EASY
JEE Main
IMPORTANT
Chemical nature of the nitrogen oxide compound obtained from a reaction of concentrated nitric acid and P4O10 (in 4: 1 ratio) is:
HARD
JEE Main
IMPORTANT
An inorganic Compound 'X' on treatment with concentrated H2SO4 produces brown fumes and gives dark brown ring with FeSO4 in presence of concentrated H2SO4. Also Compound 'X' gives precipitate 'Y', when its solution in dilute HCl is treated with H2S gas. The precipitate 'Y' on treatment with concentrated HNO3 followed by excess of NH4OH further gives deep blue coloured solution, Compound 'X' is:
HARD
JEE Main
IMPORTANT
On heating compound A gives a gas B which is constituent of air. This gas when treated with H2 in the presence of a catalyst gives another gas C which is basic in nature. A should not be :
MEDIUM
JEE Main
IMPORTANT
Example of a three-dimensional silicate is :